Base | Representation |
---|---|
bin | 11101101111110111… |
… | …01110101011101100 |
3 | 1112020000212012101100 |
4 | 32313323232223230 |
5 | 230202010240444 |
6 | 11200433243100 |
7 | 1103525322222 |
oct | 166773565354 |
9 | 45200765340 |
10 | 15970790124 |
11 | 6856105003 |
12 | 3118703490 |
13 | 16769c9a93 |
14 | ab712ab12 |
15 | 637175e69 |
hex | 3b7eeeaec |
15970790124 has 18 divisors (see below), whose sum is σ = 40370608460. Its totient is φ = 5323596696.
The previous prime is 15970790053. The next prime is 15970790141. The reversal of 15970790124 is 42109707951.
It is a tau number, because it is divible by the number of its divisors (18).
It is a super-2 number, since 2×159707901242 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 15970790124.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221816494 + ... + 221816565.
Almost surely, 215970790124 is an apocalyptic number.
It is an amenable number.
15970790124 is an abundant number, since it is smaller than the sum of its proper divisors (24399818336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15970790124 is a wasteful number, since it uses less digits than its factorization.
15970790124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 443633069 (or 443633064 counting only the distinct ones).
The product of its (nonzero) digits is 158760, while the sum is 45.
The spelling of 15970790124 in words is "fifteen billion, nine hundred seventy million, seven hundred ninety thousand, one hundred twenty-four".
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