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312001141210020 = 2232565919871323733
BaseRepresentation
bin100011011110000110110110…
…1001100001111101110100100
31111220201000110222102011111100
41012330031231030033232210
5311343311314122210040
63023323202350240100
7122501224063563363
oct10674155514175644
91456630428364440
10312001141210020
119045aa393a62a9
122ababab2ab6030
13105127733738b2
145708d15bdd7da
152610ceba55b30
hex11bc36d30fba4

312001141210020 has 144 divisors (see below), whose sum is σ = 948317319069120. Its totient is φ = 83032180455168.

The previous prime is 312001141210019. The next prime is 312001141210027. The reversal of 312001141210020 is 20012141100213.

312001141210020 is a `hidden beast` number, since 3 + 120 + 0 + 11 + 412 + 100 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312001141209975 and 312001141210002.

It is not an unprimeable number, because it can be changed into a prime (312001141210027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235036074 + ... + 236359806.

It is an arithmetic number, because the mean of its divisors is an integer number (6585536937980).

Almost surely, 2312001141210020 is an apocalyptic number.

312001141210020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312001141210020 is an abundant number, since it is smaller than the sum of its proper divisors (636316177859100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312001141210020 is a wasteful number, since it uses less digits than its factorization.

312001141210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326394 (or 1326389 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 312001141210020 its reverse (20012141100213), we get a palindrome (332013282310233).

The spelling of 312001141210020 in words is "three hundred twelve trillion, one billion, one hundred forty-one million, two hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 659 1318 1977 1987 2636 3295 3954 3974 5931 5961 6590 7908 7948 9885 9935 11862 11922 13180 17883 19770 19870 23724 23844 29655 29805 35766 39540 39740 59310 59610 71532 89415 118620 119220 178830 357660 1309433 1323733 2618866 2647466 3928299 3971199 5237732 5294932 6547165 6618665 7856598 7942398 11784897 11913597 13094330 13237330 15713196 15884796 19641495 19855995 23569794 23827194 26188660 26474660 39282990 39711990 47139588 47654388 58924485 59567985 78565980 79423980 117848970 119135970 235697940 238271940 872340047 1744680094 2617020141 2630257471 3489360188 4361700235 5234040282 5260514942 7851060423 7890772413 8723400470 10468080564 10521029884 13085100705 13151287355 15702120846 15781544826 17446800940 23672317239 26170201410 26302574710 31404241692 31563089652 39255302115 39453862065 47344634478 52340402820 52605149420 78510604230 78907724130 94689268956 118361586195 157021208460 157815448260 236723172390 473446344780 1733339673389 3466679346778 5200019020167 6933358693556 8666698366945 10400038040334 15600057060501 17333396733890 20800076080668 26000095100835 31200114121002 34666793467780 52000190201670 62400228242004 78000285302505 104000380403340 156000570605010 312001141210020