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13031220312210 = 2352290718962501
BaseRepresentation
bin1011110110100001000101…
…0000011111100010010010
31201010202212011000201022010
42331220101100133202102
53202000414344442320
643414243204123350
72513321534024652
oct275502120374222
951122764021263
1013031220312210
114174567163411
121565655396556
13736ab9b07239
14330a0056a362
15178e8a4aeae0
hexbda1141f892

13031220312210 has 32 divisors (see below), whose sum is σ = 31276295698752. Its totient is φ = 3474840200000.

The previous prime is 13031220312169. The next prime is 13031220312233. The reversal of 13031220312210 is 1221302213031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8794041 + ... + 10168460.

It is an arithmetic number, because the mean of its divisors is an integer number (977384240586).

Almost surely, 213031220312210 is an apocalyptic number.

13031220312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031220312210 is an abundant number, since it is smaller than the sum of its proper divisors (18245075386542).

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

13031220312210 is a wasteful number, since it uses less digits than its factorization.

13031220312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18985418.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13031220312210 its reverse (1221302213031), we get a palindrome (14252522525241).

The spelling of 13031220312210 in words is "thirteen trillion, thirty-one billion, two hundred twenty million, three hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 22907 45814 68721 114535 137442 229070 343605 687210 18962501 37925002 56887503 94812505 113775006 189625010 284437515 568875030 434374010407 868748020814 1303122031221 2171870052035 2606244062442 4343740104070 6515610156105 13031220312210