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57074472 = 233271331281
BaseRepresentation
bin1101100110111…
…0001100101000
310222101200110100
43121232030220
5104102340342
65355145400
71262060610
oct331561450
9128350410
1057074472
112a242994
1217145260
13ba944a0
147819a40
155025e4c
hex366e328

57074472 has 192 divisors, whose sum is σ = 197084160. Its totient is φ = 14515200.

The previous prime is 57074453. The next prime is 57074483. The reversal of 57074472 is 27447075.

It is a happy number.

57074472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202972 + ... + 203252.

It is an arithmetic number, because the mean of its divisors is an integer number (1026480).

Almost surely, 257074472 is an apocalyptic number.

57074472 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57074472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98542080).

57074472 is an abundant number, since it is smaller than the sum of its proper divisors (140009688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57074472 is a wasteful number, since it uses less digits than its factorization.

57074472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 57074472 is about 7554.7648540507. The cubic root of 57074472 is about 385.0176457871.

The spelling of 57074472 in words is "fifty-seven million, seventy-four thousand, four hundred seventy-two".