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13031211203232 = 2531433266103
BaseRepresentation
bin1011110110100001000010…
…1101101111101010100000
31201010202211111212221010120
42331220100231233222200
53202000410032000412
643414242241000240
72513321363426115
oct275502055575240
951122744787116
1013031211203232
114174562001732
121565652323080
13736ab7c68101
143309dd27890c
15178e897b0b8c
hexbda10b6faa0

13031211203232 has 72 divisors (see below), whose sum is σ = 34231334757984. Its totient is φ = 4340640182784.

The previous prime is 13031211203207. The next prime is 13031211203239. The reversal of 13031211203232 is 23230211213031.

13031211203232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13031211203239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197101893 + ... + 197167995.

It is an arithmetic number, because the mean of its divisors is an integer number (475435204972).

Almost surely, 213031211203232 is an apocalyptic number.

13031211203232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13031211203232 is an abundant number, since it is smaller than the sum of its proper divisors (21200123554752).

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

13031211203232 is an frugal number, since it uses more digits than its factorization.

13031211203232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68982 (or 67541 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13031211203232 its reverse (23230211213031), we get a palindrome (36261422416263).

The spelling of 13031211203232 in words is "thirteen trillion, thirty-one billion, two hundred eleven million, two hundred three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1433 2866 4299 5732 8598 11464 17196 22928 34392 45856 66103 68784 132206 137568 198309 264412 396618 528824 793236 1057648 1586472 2053489 2115296 3172944 4106978 6160467 6345888 8213956 12320934 16427912 24641868 32855824 49283736 65711648 94725599 98567472 189451198 197134944 284176797 378902396 568353594 757804792 1136707188 1515609584 2273414376 3031219168 4546828752 9093657504 135741783367 271483566734 407225350101 542967133468 814450700202 1085934266936 1628901400404 2171868533872 3257802800808 4343737067744 6515605601616 13031211203232