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57054426 = 231113292293
BaseRepresentation
bin1101100110100…
…1010011011010
310222100122221220
43121221103122
5104101220201
65354512510
71261645302
oct331512332
9128318856
1057054426
112a229920
1217135736
13ba88320
147812602
155020036
hex36694da

57054426 has 64 divisors (see below), whose sum is σ = 138741120. Its totient is φ = 15402240.

The previous prime is 57054419. The next prime is 57054427. The reversal of 57054426 is 62445075.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57054427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23736 + ... + 26028.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 257054426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57054426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69370560).

57054426 is an abundant number, since it is smaller than the sum of its proper divisors (81686694).

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

57054426 is a wasteful number, since it uses less digits than its factorization.

57054426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 57054426 is about 7553.4380251644. The cubic root of 57054426 is about 384.9725645261.

The spelling of 57054426 in words is "fifty-seven million, fifty-four thousand, four hundred twenty-six".

Divisors: 1 2 3 6 11 13 22 26 29 33 39 58 66 78 87 143 174 286 319 377 429 638 754 858 957 1131 1914 2262 2293 4147 4586 6879 8294 12441 13758 24882 25223 29809 50446 59618 66497 75669 89427 132994 151338 178854 199491 327899 398982 655798 731467 864461 983697 1462934 1728922 1967394 2194401 2593383 4388802 5186766 9509071 19018142 28527213 57054426