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31455311355413 = 116761422951303
BaseRepresentation
bin1110010011011110000101…
…01010001101111000010101
311010101002122201202112110222
413021233002222031320111
513110330434201333123
6150522212012124125
76424366636662221
oct711570252157025
9133332581675428
1031455311355413
11a028139249320
123640300166645
1314722b92b9c9a
147aa633875781
15398358c386c8
hex1c9bc2a8de15

31455311355413 has 8 divisors (see below), whose sum is σ = 34319960611776. Its totient is φ = 28591508015200.

The previous prime is 31455311355359. The next prime is 31455311355427.

31455311355413 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 a de Polignac number, because none of the positive numbers 2k-31455311355413 is a prime.

It is a super-2 number, since 2×314553113554132 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31455311355313) 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, 211401281 + ... + 211550022.

It is an arithmetic number, because the mean of its divisors is an integer number (4289995076472).

Almost surely, 231455311355413 is an apocalyptic number.

It is an amenable number.

31455311355413 is a deficient number, since it is larger than the sum of its proper divisors (2864649256363).

31455311355413 is a wasteful number, since it uses less digits than its factorization.

31455311355413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422958075.

The product of its digits is 810000, while the sum is 44.

The spelling of 31455311355413 in words is "thirty-one trillion, four hundred fifty-five billion, three hundred eleven million, three hundred fifty-five thousand, four hundred thirteen".

Divisors: 1 11 6761 74371 422951303 4652464333 2859573759583 31455311355413