Base | Representation |
---|---|
bin | 11110101001110… |
… | …10100101100000 |
3 | 122220212010021000 |
4 | 33110322211200 |
5 | 1011312003323 |
6 | 41303232000 |
7 | 6241443321 |
oct | 1724724540 |
9 | 586763230 |
10 | 257141088 |
11 | 1221709a6 |
12 | 72148600 |
13 | 41372bb9 |
14 | 26218448 |
15 | 17894e43 |
hex | f53a960 |
257141088 has 48 divisors (see below), whose sum is σ = 749997360. Its totient is φ = 85713408.
The previous prime is 257141029. The next prime is 257141111. The reversal of 257141088 is 880141752.
257141088 is a `hidden beast` number, since 2 + 571 + 4 + 1 + 0 + 88 = 666.
257141088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×2571410882 = 132243078275647488, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147945 + ... + 149672.
It is an arithmetic number, because the mean of its divisors is an integer number (15624945).
Almost surely, 2257141088 is an apocalyptic number.
It is an amenable number.
257141088 is an abundant number, since it is smaller than the sum of its proper divisors (492856272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
257141088 is a wasteful number, since it uses less digits than its factorization.
257141088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 297636 (or 297622 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
The square root of 257141088 is about 16035.6193519303. The cubic root of 257141088 is about 635.9024414260.
The spelling of 257141088 in words is "two hundred fifty-seven million, one hundred forty-one thousand, eighty-eight".
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