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57940453 = 181320113
BaseRepresentation
bin1101110100000…
…1100111100101
311001000200100201
43131001213211
5104313043303
65425510501
71302325414
oct335014745
9131020321
1057940453
112a78457a
12174a2431
13c0086bc
1479a347b
15514781d
hex37419e5

57940453 has 4 divisors (see below), whose sum is σ = 58260748. Its totient is φ = 57620160.

The previous prime is 57940429. The next prime is 57940459. The reversal of 57940453 is 35404975.

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 5189284 + 52751169 = 2278^2 + 7263^2 .

It is a cyclic number.

It is not a de Polignac number, because 57940453 - 221 = 55843301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57940459) 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, 159876 + ... + 160237.

It is an arithmetic number, because the mean of its divisors is an integer number (14565187).

Almost surely, 257940453 is an apocalyptic number.

It is an amenable number.

57940453 is a deficient number, since it is larger than the sum of its proper divisors (320295).

57940453 is a wasteful number, since it uses less digits than its factorization.

57940453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320294.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 57940453 is about 7611.8626498381. The cubic root of 57940453 is about 386.9551479601.

The spelling of 57940453 in words is "fifty-seven million, nine hundred forty thousand, four hundred fifty-three".

Divisors: 1 181 320113 57940453