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57214037 = 431330559
BaseRepresentation
bin1101101001000…
…0010001010101
310222122202220102
43122100101111
5104121322122
65402143445
71263211526
oct332202125
9128582812
1057214037
112a328831
12171b1b85
13bb12b7a
14785484d
155052492
hex3690455

57214037 has 4 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 55883436.

The previous prime is 57214007. The next prime is 57214039. The reversal of 57214037 is 73041275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57214037 - 26 = 57213973 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 (57214039) 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, 665237 + ... + 665322.

It is an arithmetic number, because the mean of its divisors is an integer number (14636160).

Almost surely, 257214037 is an apocalyptic number.

It is an amenable number.

57214037 is a deficient number, since it is larger than the sum of its proper divisors (1330603).

57214037 is a wasteful number, since it uses less digits than its factorization.

57214037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330602.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 57214037 is about 7563.9960999461. The cubic root of 57214037 is about 385.3312199976.

The spelling of 57214037 in words is "fifty-seven million, two hundred fourteen thousand, thirty-seven".

Divisors: 1 43 1330559 57214037