Base | Representation |
---|---|
bin | 11101010010111000… |
… | …001110111101111000 |
3 | 10000012011120222001200 |
4 | 131102320032331320 |
5 | 1003410020303102 |
6 | 22241135014200 |
7 | 2162330110113 |
oct | 352270167570 |
9 | 100164528050 |
10 | 31455244152 |
11 | 12381735552 |
12 | 611a36a360 |
13 | 2c73a16c07 |
14 | 174581b57a |
15 | c4178251c |
hex | 752e0ef78 |
31455244152 has 48 divisors (see below), whose sum is σ = 86462811240. Its totient is φ = 10328586048.
The previous prime is 31455244151. The next prime is 31455244181. The reversal of 31455244152 is 25144255413.
31455244152 is a `hidden beast` number, since 3 + 1 + 45 + 524 + 41 + 52 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31455244151) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3255463 + ... + 3265110.
Almost surely, 231455244152 is an apocalyptic number.
It is an amenable number.
31455244152 is an abundant number, since it is smaller than the sum of its proper divisors (55007567088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31455244152 is a wasteful number, since it uses less digits than its factorization.
31455244152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6520652 (or 6520645 counting only the distinct ones).
The product of its digits is 96000, while the sum is 36.
Adding to 31455244152 its reverse (25144255413), we get a palindrome (56599499565).
The spelling of 31455244152 in words is "thirty-one billion, four hundred fifty-five million, two hundred forty-four thousand, one hundred fifty-two".
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