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57371472 = 24322391667
BaseRepresentation
bin1101101011011…
…0101101010000
310222221202212100
43122312231100
5104141341342
65405400400
71264435524
oct332665520
9128852770
1057371472
112a426044
1217269100
13bb69722
147895d84
155083e4c
hex36b6b50

57371472 has 60 divisors (see below), whose sum is σ = 161328960. Its totient is φ = 19032384.

The previous prime is 57371467. The next prime is 57371473. The reversal of 57371472 is 27417375.

57371472 is a `hidden beast` number, since 573 + 7 + 14 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57371473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33583 + ... + 35249.

It is an arithmetic number, because the mean of its divisors is an integer number (2688816).

Almost surely, 257371472 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 57371472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80664480).

57371472 is an abundant number, since it is smaller than the sum of its proper divisors (103957488).

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

57371472 is a wasteful number, since it uses less digits than its factorization.

57371472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1911 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 57371472 is about 7574.3958174893. The cubic root of 57371472 is about 385.6843330062.

The spelling of 57371472 in words is "fifty-seven million, three hundred seventy-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 239 478 717 956 1434 1667 1912 2151 2868 3334 3824 4302 5001 5736 6668 8604 10002 11472 13336 15003 17208 20004 26672 30006 34416 40008 60012 80016 120024 240048 398413 796826 1195239 1593652 2390478 3187304 3585717 4780956 6374608 7171434 9561912 14342868 19123824 28685736 57371472