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57169201 = 58819721
BaseRepresentation
bin1101101000010…
…1010100110001
310222120111101211
43122011110301
5104113403301
65401200121
71262634025
oct332052461
9128514354
1057169201
112a2a8081
1217190041
13bac863b
147842385
155044051
hex3685531

57169201 has 4 divisors (see below), whose sum is σ = 57184804. Its totient is φ = 57153600.

The previous prime is 57169193. The next prime is 57169207. The reversal of 57169201 is 10296175.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21169201 + 36000000 = 4601^2 + 6000^2 .

It is a cyclic number.

It is not a de Polignac number, because 57169201 - 23 = 57169193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57169207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021 + ... + 10741.

It is an arithmetic number, because the mean of its divisors is an integer number (14296201).

Almost surely, 257169201 is an apocalyptic number.

It is an amenable number.

57169201 is a deficient number, since it is larger than the sum of its proper divisors (15603).

57169201 is an equidigital number, since it uses as much as digits as its factorization.

57169201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15602.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 57169201 is about 7561.0317417665. The cubic root of 57169201 is about 385.2305382626.

The spelling of 57169201 in words is "fifty-seven million, one hundred sixty-nine thousand, two hundred one".

Divisors: 1 5881 9721 57169201