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31034243013 = 310344747671
BaseRepresentation
bin11100111001110010…
…001111011111000101
32222002211101220001220
4130321302033133011
51002024231234023
622131255310553
72146025466414
oct347162173705
988084356056
1031034243013
1112186026124
12602137b459
132c07731607
14170594b47b
15c198213e3
hex739c8f7c5

31034243013 has 4 divisors (see below), whose sum is σ = 41378990688. Its totient is φ = 20689495340.

The previous prime is 31034243011. The next prime is 31034243017.

31034243013 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31034243013 - 21 = 31034243011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31034243011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5172373833 + ... + 5172373838.

It is an arithmetic number, because the mean of its divisors is an integer number (10344747672).

Almost surely, 231034243013 is an apocalyptic number.

It is an amenable number.

31034243013 is a deficient number, since it is larger than the sum of its proper divisors (10344747675).

31034243013 is a wasteful number, since it uses less digits than its factorization.

31034243013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10344747674.

The product of its (nonzero) digits is 2592, while the sum is 24.

The spelling of 31034243013 in words is "thirty-one billion, thirty-four million, two hundred forty-three thousand, thirteen".

Divisors: 1 3 10344747671 31034243013