Base | Representation |
---|---|
bin | 1110010011011110000101… |
… | …01010001101111000010101 |
3 | 11010101002122201202112110222 |
4 | 13021233002222031320111 |
5 | 13110330434201333123 |
6 | 150522212012124125 |
7 | 6424366636662221 |
oct | 711570252157025 |
9 | 133332581675428 |
10 | 31455311355413 |
11 | a028139249320 |
12 | 3640300166645 |
13 | 14722b92b9c9a |
14 | 7aa633875781 |
15 | 398358c386c8 |
hex | 1c9bc2a8de15 |
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".
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