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200131200131212 = 227231496833053669
BaseRepresentation
bin101101100000010010101101…
…000101111010000010001100
3222020121100121102211021201101
4231200102231011322002030
5202212422144213144322
61545351000515352444
760104000464114630
oct5540225505720214
9866540542737641
10200131200131212
115884a190078859
121a542925bb2724
1387893a29a280c
14375c58a654dc0
151820d12467327
hexb604ad17a08c

200131200131212 has 96 divisors (see below), whose sum is σ = 421083992448000. Its totient is φ = 81371408777472.

The previous prime is 200131200131207. The next prime is 200131200131221. The reversal of 200131200131212 is 212131002131002.

It is a self number, because there is not a number n which added to its sum of digits gives 200131200131212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64011114 + ... + 67064782.

It is an arithmetic number, because the mean of its divisors is an integer number (4386291588000).

Almost surely, 2200131200131212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200131200131212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210541996224000).

200131200131212 is an abundant number, since it is smaller than the sum of its proper divisors (220952792316788).

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

200131200131212 is a wasteful number, since it uses less digits than its factorization.

200131200131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054535 (or 3054533 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 200131200131212 its reverse (212131002131002), we get a palindrome (412262202262214).

The spelling of 200131200131212 in words is "two hundred trillion, one hundred thirty-one billion, two hundred million, one hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 23 28 46 92 149 161 298 322 596 644 683 1043 1366 2086 2732 3427 4172 4781 6854 9562 13708 15709 19124 23989 31418 47978 62836 95956 101767 109963 203534 219926 407068 439852 712369 1424738 2340641 2849476 3053669 4681282 6107338 9362564 12214676 16384487 21375683 32768974 42751366 65537948 70234387 85502732 140468774 280937548 454996681 491640709 909993362 983281418 1819986724 1966562836 2085655927 3184976767 4171311854 6369953534 8342623708 10464923663 12739907068 14599591489 20929847326 29199182978 41859694652 47970086321 58398365956 73254465641 95940172642 146508931282 191880345284 293017862564 310762733123 335790604247 621525466246 671581208494 1243050932492 1343162416988 2175339131861 4350678263722 7147542861829 8701356527444 14295085723658 28590171447316 50032800032803 100065600065606 200131200131212