Base | Representation |
---|---|
bin | 1101110100100… |
… | …1000000001001 |
3 | 11001002012211212 |
4 | 3131021000021 |
5 | 104320030242 |
6 | 5430302505 |
7 | 1302512531 |
oct | 335110011 |
9 | 131065755 |
10 | 57970697 |
11 | 2a7a5274 |
12 | 174b7a35 |
13 | c0193b5 |
14 | 79b04c1 |
15 | 5151782 |
hex | 3749009 |
57970697 has 8 divisors (see below), whose sum is σ = 61475112. Its totient is φ = 54476800.
The previous prime is 57970673. The next prime is 57970699. The reversal of 57970697 is 79607975.
It can be written as a sum of positive squares in 4 ways, for example, as 5900041 + 52070656 = 2429^2 + 7216^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-57970697 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (57970699) 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, 10697 + ... + 15177.
It is an arithmetic number, because the mean of its divisors is an integer number (7684389).
Almost surely, 257970697 is an apocalyptic number.
It is an amenable number.
57970697 is a deficient number, since it is larger than the sum of its proper divisors (3504415).
57970697 is a wasteful number, since it uses less digits than its factorization.
57970697 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5259.
The product of its (nonzero) digits is 833490, while the sum is 50.
The square root of 57970697 is about 7613.8490266093. The cubic root of 57970697 is about 387.0224644043.
The spelling of 57970697 in words is "fifty-seven million, nine hundred seventy thousand, six hundred ninety-seven".
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