Base | Representation |
---|---|
bin | 11100111000010000… |
… | …100001010101111111 |
3 | 2222001001012102012101 |
4 | 130320100201111333 |
5 | 1002001202013142 |
6 | 22124542245531 |
7 | 2145264654400 |
oct | 347020412577 |
9 | 88031172171 |
10 | 31008626047 |
11 | 12172619783 |
12 | 60148868a7 |
13 | 2c02332649 |
14 | 170239d9a7 |
15 | c174610b7 |
hex | 73842157f |
31008626047 has 24 divisors (see below), whose sum is σ = 37463281920. Its totient is φ = 25572299760.
The previous prime is 31008626041. The next prime is 31008626053. The reversal of 31008626047 is 74062680013.
It is an interprime number because it is at equal distance from previous prime (31008626041) and next prime (31008626053).
It is not a de Polignac number, because 31008626047 - 215 = 31008593279 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31008625997 and 31008626015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31008626041) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21772 + ... + 249982.
It is an arithmetic number, because the mean of its divisors is an integer number (1560970080).
Almost surely, 231008626047 is an apocalyptic number.
31008626047 is a deficient number, since it is larger than the sum of its proper divisors (6454655873).
31008626047 is a wasteful number, since it uses less digits than its factorization.
31008626047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228331 (or 228324 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 37.
The spelling of 31008626047 in words is "thirty-one billion, eight million, six hundred twenty-six thousand, forty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •