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311431134113 = 1187719322757
BaseRepresentation
bin1001000100000101011…
…11011111101110100001
31002202212011121210210122
410202002233133232201
520100302332242423
6355023002010025
731333360651061
oct4420257375641
91082764553718
10311431134113
11110093835580
12504357a6915
13234a2178aa8
141110539d3a1
15817b0118c8
hex4882bdfba1

311431134113 has 8 divisors (see below), whose sum is σ = 339747981120. Its totient is φ = 283115108080.

The previous prime is 311431134089. The next prime is 311431134149.

311431134113 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311431134113 - 216 = 311431068577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311431134163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803531 + ... + 1126287.

It is an arithmetic number, because the mean of its divisors is an integer number (42468497640).

Almost surely, 2311431134113 is an apocalyptic number.

It is an amenable number.

311431134113 is a deficient number, since it is larger than the sum of its proper divisors (28316847007).

311431134113 is a wasteful number, since it uses less digits than its factorization.

311431134113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410487.

The product of its digits is 1296, while the sum is 26.

It can be divided in two parts, 311431 and 134113, that added together give a palindrome (445544).

The spelling of 311431134113 in words is "three hundred eleven billion, four hundred thirty-one million, one hundred thirty-four thousand, one hundred thirteen".

Divisors: 1 11 87719 322757 964909 3550327 28311921283 311431134113