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57947201 = 134457477
BaseRepresentation
bin1101110100001…
…1010001000001
311001001000121122
43131003101001
5104313302301
65430002025
71302354164
oct335032101
9131030548
1057947201
112a789654
12174a6315
13c00b7b0
1479a5adb
15514981b
hex3743441

57947201 has 4 divisors (see below), whose sum is σ = 62404692. Its totient is φ = 53489712.

The previous prime is 57947159. The next prime is 57947209. The reversal of 57947201 is 10274975.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39250225 + 18696976 = 6265^2 + 4324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57947201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57947209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228726 + ... + 2228751.

It is an arithmetic number, because the mean of its divisors is an integer number (15601173).

Almost surely, 257947201 is an apocalyptic number.

It is an amenable number.

57947201 is a deficient number, since it is larger than the sum of its proper divisors (4457491).

57947201 is a wasteful number, since it uses less digits than its factorization.

57947201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457490.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 57947201 is about 7612.3058924350. The cubic root of 57947201 is about 386.9701695431.

The spelling of 57947201 in words is "fifty-seven million, nine hundred forty-seven thousand, two hundred one".

Divisors: 1 13 4457477 57947201