Base | Representation |
---|---|
bin | 11101001101111110… |
… | …101000101001111001 |
3 | 2222222102220100212222 |
4 | 131031332220221321 |
5 | 1003222444124103 |
6 | 22225041013425 |
7 | 2160311256464 |
oct | 351576505171 |
9 | 88872810788 |
10 | 31373036153 |
11 | 1233a296458 |
12 | 60b6924275 |
13 | 2c5c992824 |
14 | 173893c2db |
15 | c39444638 |
hex | 74dfa8a79 |
31373036153 has 2 divisors, whose sum is σ = 31373036154. Its totient is φ = 31373036152.
The previous prime is 31373036119. The next prime is 31373036159. The reversal of 31373036153 is 35163037313.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22884730729 + 8488305424 = 151277^2 + 92132^2 .
It is an emirp because it is prime and its reverse (35163037313) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31373036153 - 26 = 31373036089 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (31373036159) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15686518076 + 15686518077.
It is an arithmetic number, because the mean of its divisors is an integer number (15686518077).
Almost surely, 231373036153 is an apocalyptic number.
It is an amenable number.
31373036153 is a deficient number, since it is larger than the sum of its proper divisors (1).
31373036153 is an equidigital number, since it uses as much as digits as its factorization.
31373036153 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 51030, while the sum is 35.
The spelling of 31373036153 in words is "thirty-one billion, three hundred seventy-three million, thirty-six thousand, one hundred fifty-three".
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