Base | Representation |
---|---|
bin | 11101001101101101… |
… | …100101010000101001 |
3 | 2222222010111020201101 |
4 | 131031231211100221 |
5 | 1003220323101201 |
6 | 22224401121401 |
7 | 2160225260416 |
oct | 351555452051 |
9 | 88863436641 |
10 | 31368565801 |
11 | 12337812851 |
12 | 60b5329261 |
13 | 2c5ba88b51 |
14 | 17380d710d |
15 | c38d5ed01 |
hex | 74db65429 |
31368565801 has 16 divisors (see below), whose sum is σ = 34687709568. Its totient is φ = 28215404800.
The previous prime is 31368565757. The next prime is 31368565817. The reversal of 31368565801 is 10856586313.
It is a cyclic number.
It is not a de Polignac number, because 31368565801 - 29 = 31368565289 is a prime.
It is not an unprimeable number, because it can be changed into a prime (31368565201) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427806 + ... + 495736.
It is an arithmetic number, because the mean of its divisors is an integer number (2167981848).
Almost surely, 231368565801 is an apocalyptic number.
It is an amenable number.
31368565801 is a deficient number, since it is larger than the sum of its proper divisors (3319143767).
31368565801 is a wasteful number, since it uses less digits than its factorization.
31368565801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69152.
The product of its (nonzero) digits is 518400, while the sum is 46.
The spelling of 31368565801 in words is "thirty-one billion, three hundred sixty-eight million, five hundred sixty-five thousand, eight hundred one".
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