Base | Representation |
---|---|
bin | 111111100001000… |
… | …0000001001000011 |
3 | 12111112021202201120 |
4 | 1333002000021003 |
5 | 13331043400144 |
6 | 551251403323 |
7 | 103546111221 |
oct | 17702001103 |
9 | 5445252646 |
10 | 2131231299 |
11 | 9a402a68a |
12 | 4b58b3543 |
13 | 27c704412 |
14 | 163099b11 |
15 | c7185e19 |
hex | 7f080243 |
2131231299 has 16 divisors (see below), whose sum is σ = 3015682560. Its totient is φ = 1334183040.
The previous prime is 2131231279. The next prime is 2131231303. The reversal of 2131231299 is 9921321312.
It is not a de Polignac number, because 2131231299 - 27 = 2131231171 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2131231229) 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, 25207 + ... + 69984.
It is an arithmetic number, because the mean of its divisors is an integer number (188480160).
Almost surely, 22131231299 is an apocalyptic number.
2131231299 is a deficient number, since it is larger than the sum of its proper divisors (884451261).
2131231299 is a wasteful number, since it uses less digits than its factorization.
2131231299 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95650.
The product of its digits is 5832, while the sum is 33.
The square root of 2131231299 is about 46165.2607379185. The cubic root of 2131231299 is about 1286.8962297300.
The spelling of 2131231299 in words is "two billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred ninety-nine".
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