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13031213231062 = 213271543012469
BaseRepresentation
bin1011110110100001000011…
…0101011110101111010110
31201010202211122200221210101
42331220100311132233112
53202000411041343222
643414242352244314
72513321416603135
oct275502065365726
951122748627711
1013031213231062
114174563167224
121565652b4069a
13736ab84c8100
143309dd64591c
15178e89a61927
hexbda10d5ebd6

13031213231062 has 24 divisors (see below), whose sum is σ = 21464196914160. Its totient is φ = 5929696150560.

The previous prime is 13031213231017. The next prime is 13031213231063. The reversal of 13031213231062 is 26013231213031.

It is a self number, because there is not a number n which added to its sum of digits gives 13031213231062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031213231063) 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, 271482237 + ... + 271530232.

It is an arithmetic number, because the mean of its divisors is an integer number (894341538090).

Almost surely, 213031213231062 is an apocalyptic number.

13031213231062 is a deficient number, since it is larger than the sum of its proper divisors (8432983683098).

13031213231062 is a wasteful number, since it uses less digits than its factorization.

13031213231062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543012568 (or 543012555 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 13031213231062 its reverse (26013231213031), we get a palindrome (39044444444093).

The spelling of 13031213231062 in words is "thirteen trillion, thirty-one billion, two hundred thirteen million, two hundred thirty-one thousand, sixty-two".

Divisors: 1 2 13 26 71 142 169 338 923 1846 11999 23998 543012469 1086024938 7059162097 14118324194 38553885299 77107770598 91769107261 183538214522 501200508887 1002401017774 6515606615531 13031213231062