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31023023033100 = 223527107711371541
BaseRepresentation
bin1110000110111000111000…
…10001001000101100001100
311001211202211211000110000210
413003130130101020230030
513031240122344024400
6145551440253122420
76351224300605560
oct703343421105414
9131752754013023
1031023023033100
11998087680852a
123590577789410
1314405c649caa7
147937453996a0
1538bea789e950
hex1c371c448b0c

31023023033100 has 144 divisors (see below), whose sum is σ = 102592394944256. Its totient is φ = 7090313184000.

The previous prime is 31023023033089. The next prime is 31023023033117. The reversal of 31023023033100 is 133032032013.

It is a super-2 number, since 2×310230230331002 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21933330 + ... + 23304870.

Almost surely, 231023023033100 is an apocalyptic number.

31023023033100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31023023033100 is an abundant number, since it is smaller than the sum of its proper divisors (71569371911156).

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

31023023033100 is a wasteful number, since it uses less digits than its factorization.

31023023033100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382336 (or 1382329 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31023023033100 its reverse (133032032013), we get a palindrome (31156055065113).

The spelling of 31023023033100 in words is "thirty-one trillion, twenty-three billion, twenty-three million, thirty-three thousand, one hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 10771 21542 32313 43084 53855 64626 75397 107710 129252 150794 161565 215420 226191 269275 301588 323130 376985 452382 538550 646260 753970 807825 904764 1077100 1130955 1371541 1507940 1615650 1884925 2261910 2743082 3231300 3769850 4114623 4523820 5486164 5654775 6857705 7539700 8229246 9600787 11309550 13715410 16458492 19201574 20573115 22619100 27430820 28802361 34288525 38403148 41146230 48003935 57604722 68577050 82292460 96007870 102865575 115209444 137154100 144011805 192015740 205731150 240019675 288023610 411462300 480039350 576047220 720059025 960078700 1440118050 2880236100 14772868111 29545736222 44318604333 59091472444 73864340555 88637208666 103410076777 147728681110 177274417332 206820153554 221593021665 295457362220 310230230331 369321702775 413640307108 443186043330 517050383885 620460460662 738643405550 886372086660 1034100767770 1107965108325 1240920921324 1477286811100 1551151151655 2068201535540 2215930216650 2585251919425 3102302303310 4431860433300 5170503838850 6204604606620 7755755758275 10341007677700 15511511516550 31023023033100