Base | Representation |
---|---|
bin | 1101110010100… |
… | …0000111111001 |
3 | 11000211101010000 |
4 | 3130220013321 |
5 | 104301223100 |
6 | 5423343213 |
7 | 1301412102 |
oct | 334500771 |
9 | 130741100 |
10 | 57836025 |
11 | 2a713075 |
12 | 17451b09 |
13 | bca0000 |
14 | 79773a9 |
15 | 5126900 |
hex | 37281f9 |
57836025 has 75 divisors (see below), whose sum is σ = 116059691. Its totient is φ = 28473120.
The previous prime is 57836003. The next prime is 57836029. The reversal of 57836025 is 52063875.
The square root of 57836025 is 7605.
It is a perfect power (a square), and thus also a powerful number.
57836025 is a `hidden beast` number, since 578 + 3 + 60 + 25 = 666.
It can be written as a sum of positive squares in 7 ways, for example, as 56746089 + 1089936 = 7533^2 + 1044^2 .
It is a tau number, because it is divible by the number of its divisors (75).
It is not a de Polignac number, because 57836025 - 25 = 57835993 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57836029) by changing a digit.
It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 4448919 + ... + 4448931.
Almost surely, 257836025 is an apocalyptic number.
57836025 is the 7605-th square number.
57836025 is the 3803-rd centered octagonal number.
It is an amenable number.
57836025 is an abundant number, since it is smaller than the sum of its proper divisors (58223666).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57836025 is an frugal number, since it uses more digits than its factorization.
57836025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74 (or 21 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 36.
The cubic root of 57836025 is about 386.7225341228.
Multiplying 57836025 by its sum of digits (36), we get a square (2082096900 = 456302).
The spelling of 57836025 in words is "fifty-seven million, eight hundred thirty-six thousand, twenty-five".
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