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31253007912106 = 2119873543736787
BaseRepresentation
bin1110001101100101010000…
…11011110100110010101010
311002122202110212010210210111
413012302220123310302222
513044022130011141411
6150245233355204534
76403645446043111
oct706625033646252
9132582425123714
1031253007912106
119a5a365225072
12360906114674a
1314591b89bb606
147a09218aac78
15392e68462721
hex1c6ca86f4caa

31253007912106 has 16 divisors (see below), whose sum is σ = 46886020230816. Its totient is φ = 15624334670256.

The previous prime is 31253007911999. The next prime is 31253007912107. The reversal of 31253007912106 is 60121970035213.

It is not an unprimeable number, because it can be changed into a prime (31253007912107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849548245 + ... + 849585031.

It is an arithmetic number, because the mean of its divisors is an integer number (2930376264426).

Almost surely, 231253007912106 is an apocalyptic number.

31253007912106 is a deficient number, since it is larger than the sum of its proper divisors (15633012318710).

31253007912106 is a wasteful number, since it uses less digits than its factorization.

31253007912106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84213.

The product of its (nonzero) digits is 68040, while the sum is 40.

Adding to 31253007912106 its reverse (60121970035213), we get a palindrome (91374977947319).

The spelling of 31253007912106 in words is "thirty-one trillion, two hundred fifty-three billion, seven million, nine hundred twelve thousand, one hundred six".

Divisors: 1 2 11987 23974 35437 36787 70874 73574 424783319 440965769 849566638 881931538 1303620919 2607241838 15626503956053 31253007912106