Base | Representation |
---|---|
bin | 11100111110111001… |
… | …111000110001101011 |
3 | 2222022211000120021221 |
4 | 130332321320301223 |
5 | 1002213223230402 |
6 | 22144004242511 |
7 | 2151120524251 |
oct | 347671706153 |
9 | 88284016257 |
10 | 31120133227 |
11 | 1221a55a777 |
12 | 60460a0437 |
13 | 2c1c474a21 |
14 | 17131085d1 |
15 | c2213a337 |
hex | 73ee78c6b |
31120133227 has 2 divisors, whose sum is σ = 31120133228. Its totient is φ = 31120133226.
The previous prime is 31120133183. The next prime is 31120133249. The reversal of 31120133227 is 72233102113.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31120133227 is a prime.
It is not a weakly prime, because it can be changed into another prime (31120130227) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560066613 + 15560066614.
It is an arithmetic number, because the mean of its divisors is an integer number (15560066614).
Almost surely, 231120133227 is an apocalyptic number.
31120133227 is a deficient number, since it is larger than the sum of its proper divisors (1).
31120133227 is an equidigital number, since it uses as much as digits as its factorization.
31120133227 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 25.
The spelling of 31120133227 in words is "thirty-one billion, one hundred twenty million, one hundred thirty-three thousand, two hundred twenty-seven".
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