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57141072 = 2433349379
BaseRepresentation
bin1101100111111…
…0011101010000
310222112001211000
43121332131100
5104112003242
65400422000
71262456022
oct331763520
9128461730
1057141072
112a288a2a
1217177900
13bab88b1
147836012
15503aa4c
hex367e750

57141072 has 80 divisors (see below), whose sum is σ = 164920000. Its totient is φ = 18942336.

The previous prime is 57141043. The next prime is 57141083. The reversal of 57141072 is 27014175.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150579 + ... + 150957.

It is an arithmetic number, because the mean of its divisors is an integer number (2061500).

Almost surely, 257141072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57141072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82460000).

57141072 is an abundant number, since it is smaller than the sum of its proper divisors (107778928).

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

57141072 is a wasteful number, since it uses less digits than its factorization.

57141072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 57141072 is about 7559.1713831610. The cubic root of 57141072 is about 385.1673461513.

It can be divided in two parts, 5714 and 1072, that added together give a triangular number (6786 = T116).

The spelling of 57141072 in words is "fifty-seven million, one hundred forty-one thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 349 379 432 698 758 1047 1137 1396 1516 2094 2274 2792 3032 3141 3411 4188 4548 5584 6064 6282 6822 8376 9096 9423 10233 12564 13644 16752 18192 18846 20466 25128 27288 37692 40932 50256 54576 75384 81864 132271 150768 163728 264542 396813 529084 793626 1058168 1190439 1587252 2116336 2380878 3174504 3571317 4761756 6349008 7142634 9523512 14285268 19047024 28570536 57141072