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57382488 = 23323147547
BaseRepresentation
bin1101101011100…
…1011001011000
310222222022222100
43122321121120
5104142214423
65405523400
71264512612
oct332713130
9128868870
1057382488
112a433349
1217273560
13bb71747
147899db2
155087343
hex36b9658

57382488 has 96 divisors (see below), whose sum is σ = 164136960. Its totient is φ = 18083520.

The previous prime is 57382487. The next prime is 57382499. The reversal of 57382488 is 88428375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57382487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104631 + ... + 105177.

It is an arithmetic number, because the mean of its divisors is an integer number (1709760).

Almost surely, 257382488 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 57382488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82068480).

57382488 is an abundant number, since it is smaller than the sum of its proper divisors (106754472).

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

57382488 is a wasteful number, since it uses less digits than its factorization.

57382488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 630 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 57382488 is about 7575.1229692989. The cubic root of 57382488 is about 385.7090167417.

The spelling of 57382488 in words is "fifty-seven million, three hundred eighty-two thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 47 62 72 93 94 124 141 186 188 248 279 282 372 376 423 547 558 564 744 846 1094 1116 1128 1457 1641 1692 2188 2232 2914 3282 3384 4371 4376 4923 5828 6564 8742 9846 11656 13113 13128 16957 17484 19692 25709 26226 33914 34968 39384 50871 51418 52452 67828 77127 101742 102836 104904 135656 152613 154254 203484 205672 231381 305226 308508 406968 462762 610452 617016 796979 925524 1220904 1593958 1851048 2390937 3187916 4781874 6375832 7172811 9563748 14345622 19127496 28691244 57382488