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57572472 = 23317731933
BaseRepresentation
bin1101101110011…
…1110001111000
311000022222120210
43123213301320
5104214304342
65413551120
71266233526
oct333476170
9130288523
1057572472
112a553061
12173454a0
13bc0a069
147909316
1550c379c
hex36e7c78

57572472 has 64 divisors (see below), whose sum is σ = 154565280. Its totient is φ = 17805312.

The previous prime is 57572461. The next prime is 57572477. The reversal of 57572472 is 27427575.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57572472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57572477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28818 + ... + 30750.

Almost surely, 257572472 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 57572472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77282640).

57572472 is an abundant number, since it is smaller than the sum of its proper divisors (96992808).

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

57572472 is a wasteful number, since it uses less digits than its factorization.

57572472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2028 counting only the distinct ones).

The product of its digits is 137200, while the sum is 39.

The square root of 57572472 is about 7587.6526014308. The cubic root of 57572472 is about 386.1342209096.

The spelling of 57572472 in words is "fifty-seven million, five hundred seventy-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 73 102 136 146 204 219 292 408 438 584 876 1241 1752 1933 2482 3723 3866 4964 5799 7446 7732 9928 11598 14892 15464 23196 29784 32861 46392 65722 98583 131444 141109 197166 262888 282218 394332 423327 564436 788664 846654 1128872 1693308 2398853 3386616 4797706 7196559 9595412 14393118 19190824 28786236 57572472