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3131212737007 = 10131002106307
BaseRepresentation
bin101101100100001010110…
…100101010100111101111
3102002100012121011221111101
4231210022310222213233
5402300210430041012
610354243111503531
7442136241055615
oct55441264524757
912070177157441
103131212737007
11aa7a37a610a3
12426a24987ba7
1319936ca384a4
14ab7a14896b5
15566b3cabd57
hex2d90ad2a9ef

3131212737007 has 4 divisors (see below), whose sum is σ = 3162214843416. Its totient is φ = 3100210630600.

The previous prime is 3131212736969. The next prime is 3131212737067. The reversal of 3131212737007 is 7007372121313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3131212737007 - 219 = 3131212212719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131212737067) 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 3 ways as a sum of consecutive naturals, for example, 15501053053 + ... + 15501053254.

It is an arithmetic number, because the mean of its divisors is an integer number (790553710854).

Almost surely, 23131212737007 is an apocalyptic number.

3131212737007 is a deficient number, since it is larger than the sum of its proper divisors (31002106409).

3131212737007 is a wasteful number, since it uses less digits than its factorization.

3131212737007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31002106408.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 3131212737007 in words is "three trillion, one hundred thirty-one billion, two hundred twelve million, seven hundred thirty-seven thousand, seven".

Divisors: 1 101 31002106307 3131212737007