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57378733 = 296729531
BaseRepresentation
bin1101101011100…
…0011110101101
310222222010211021
43122320132231
5104142104413
65405454141
71264465636
oct332703655
9128863737
1057378733
112a430545
1217271351
13bb6cb19
14789888d
15508618d
hex36b87ad

57378733 has 8 divisors (see below), whose sum is σ = 60245280. Its totient is φ = 54571440.

The previous prime is 57378731. The next prime is 57378743. The reversal of 57378733 is 33787375.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57378733 - 21 = 57378731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57378733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57378731) 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, 12823 + ... + 16708.

It is an arithmetic number, because the mean of its divisors is an integer number (7530660).

Almost surely, 257378733 is an apocalyptic number.

It is an amenable number.

57378733 is a deficient number, since it is larger than the sum of its proper divisors (2866547).

57378733 is a wasteful number, since it uses less digits than its factorization.

57378733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29627.

The product of its digits is 370440, while the sum is 43.

The square root of 57378733 is about 7574.8751144821. The cubic root of 57378733 is about 385.7006032053.

The spelling of 57378733 in words is "fifty-seven million, three hundred seventy-eight thousand, seven hundred thirty-three".

Divisors: 1 29 67 1943 29531 856399 1978577 57378733