Base | Representation |
---|---|
bin | 11110101011111… |
… | …01000010111110 |
3 | 122221100221200022 |
4 | 33111331002332 |
5 | 1011344211220 |
6 | 41313132142 |
7 | 6243656060 |
oct | 1725750276 |
9 | 587327608 |
10 | 257413310 |
11 | 122337480 |
12 | 7225a052 |
13 | 41439a8b |
14 | 26289730 |
15 | 178ea925 |
hex | f57d0be |
257413310 has 64 divisors (see below), whose sum is σ = 583165440. Its totient is φ = 79470720.
The previous prime is 257413307. The next prime is 257413319. The reversal of 257413310 is 13314752.
It is a super-2 number, since 2×2574133102 = 132523224330312200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 257413310.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (257413319) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82397 + ... + 85463.
It is an arithmetic number, because the mean of its divisors is an integer number (9111960).
Almost surely, 2257413310 is an apocalyptic number.
257413310 is an abundant number, since it is smaller than the sum of its proper divisors (325752130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
257413310 is a wasteful number, since it uses less digits than its factorization.
257413310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3201.
The product of its (nonzero) digits is 2520, while the sum is 26.
The square root of 257413310 is about 16044.1051479975. The cubic root of 257413310 is about 636.1267613189.
The spelling of 257413310 in words is "two hundred fifty-seven million, four hundred thirteen thousand, three hundred ten".
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