Base | Representation |
---|---|
bin | 10010101111110… |
… | …11000000111100 |
3 | 101221220221100221 |
4 | 21113323000330 |
5 | 310230002410 |
6 | 23334431124 |
7 | 3616511254 |
oct | 1127730074 |
9 | 357827327 |
10 | 157265980 |
11 | 80855293 |
12 | 448024a4 |
13 | 267741c1 |
14 | 16c5a964 |
15 | dc174da |
hex | 95fb03c |
157265980 has 24 divisors (see below), whose sum is σ = 349686288. Its totient is φ = 59205888.
The previous prime is 157265939. The next prime is 157265981. The reversal of 157265980 is 89562751.
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157265981) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230934 + ... + 231613.
It is an arithmetic number, because the mean of its divisors is an integer number (14570262).
Almost surely, 2157265980 is an apocalyptic number.
157265980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
157265980 is an abundant number, since it is smaller than the sum of its proper divisors (192420308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157265980 is a wasteful number, since it uses less digits than its factorization.
157265980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 462573 (or 462571 counting only the distinct ones).
The product of its (nonzero) digits is 151200, while the sum is 43.
The square root of 157265980 is about 12540.5733521239. The cubic root of 157265980 is about 539.7735447357.
The spelling of 157265980 in words is "one hundred fifty-seven million, two hundred sixty-five thousand, nine hundred eighty".
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