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31344244313 = 231362793231
BaseRepresentation
bin11101001100010000…
…110011011001011001
32222220102201120220112
4131030100303121121
51003143111304223
622222131534105
72156511452324
oct351420633131
988812646815
1031344244313
1112325010748
1260a915a335
132c56a21735
141734ba57bb
15c36b58778
hex74c433659

31344244313 has 4 divisors (see below), whose sum is σ = 32707037568. Its totient is φ = 29981451060.

The previous prime is 31344244291. The next prime is 31344244357.

31344244313 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 31344244313 - 26 = 31344244249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31344244313.

It is not an unprimeable number, because it can be changed into a prime (31344244213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681396593 + ... + 681396638.

It is an arithmetic number, because the mean of its divisors is an integer number (8176759392).

Almost surely, 231344244313 is an apocalyptic number.

It is an amenable number.

31344244313 is a deficient number, since it is larger than the sum of its proper divisors (1362793255).

31344244313 is a wasteful number, since it uses less digits than its factorization.

31344244313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362793254.

The product of its digits is 41472, while the sum is 32.

The spelling of 31344244313 in words is "thirty-one billion, three hundred forty-four million, two hundred forty-four thousand, three hundred thirteen".

Divisors: 1 23 1362793231 31344244313