Base | Representation |
---|---|
bin | 1101101000111… |
… | …0100011110110 |
3 | 10222122102021220 |
4 | 3122032203312 |
5 | 104121111110 |
6 | 5402051210 |
7 | 1263152226 |
oct | 332164366 |
9 | 128572256 |
10 | 57207030 |
11 | 2a323541 |
12 | 171a9b06 |
13 | bb0c91a |
14 | 7852086 |
15 | 5050370 |
hex | 368e8f6 |
57207030 has 32 divisors (see below), whose sum is σ = 137528064. Its totient is φ = 15229536.
The previous prime is 57207001. The next prime is 57207047. The reversal of 57207030 is 3070275.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22399 + ... + 24821.
It is an arithmetic number, because the mean of its divisors is an integer number (4297752).
Almost surely, 257207030 is an apocalyptic number.
57207030 is an abundant number, since it is smaller than the sum of its proper divisors (80321034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57207030 is a wasteful number, since it uses less digits than its factorization.
57207030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3220.
The product of its (nonzero) digits is 1470, while the sum is 24.
The square root of 57207030 is about 7563.5329046683. The cubic root of 57207030 is about 385.3154888575.
The spelling of 57207030 in words is "fifty-seven million, two hundred seven thousand, thirty".
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