Base | Representation |
---|---|
bin | 11100111100101000… |
… | …110100000111010101 |
3 | 2222020011110102222101 |
4 | 130330220310013111 |
5 | 1002124004301003 |
6 | 22140125202101 |
7 | 2150146342555 |
oct | 347450640725 |
9 | 88204412871 |
10 | 31082103253 |
11 | 12200045243 |
12 | 6035400331 |
13 | 2c1461aa96 |
14 | 170c049165 |
15 | c1db2711d |
hex | 73ca341d5 |
31082103253 has 2 divisors, whose sum is σ = 31082103254. Its totient is φ = 31082103252.
The previous prime is 31082103229. The next prime is 31082103257. The reversal of 31082103253 is 35230128013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 24659363089 + 6422740164 = 157033^2 + 80142^2 .
It is an emirp because it is prime and its reverse (35230128013) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31082103253 - 29 = 31082102741 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31082103257) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15541051626 + 15541051627.
It is an arithmetic number, because the mean of its divisors is an integer number (15541051627).
Almost surely, 231082103253 is an apocalyptic number.
It is an amenable number.
31082103253 is a deficient number, since it is larger than the sum of its proper divisors (1).
31082103253 is an equidigital number, since it uses as much as digits as its factorization.
31082103253 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4320, while the sum is 28.
The spelling of 31082103253 in words is "thirty-one billion, eighty-two million, one hundred three thousand, two hundred fifty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •