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57668624 = 24131747347
BaseRepresentation
bin1101101111111…
…1010000010000
311000111212110222
43123333100100
5104230343444
65420012212
71300114046
oct333772020
9130455428
1057668624
112a609322
1217391068
13bc41a60
147932396
1550e1eee
hex36ff410

57668624 has 80 divisors (see below), whose sum is σ = 130491648. Its totient is φ = 24446976.

The previous prime is 57668623. The next prime is 57668627. The reversal of 57668624 is 42686675.

Its product of digits (483840) is a multiple of the sum of its prime factors (432).

It is not an unprimeable number, because it can be changed into a prime (57668623) 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, 166019 + ... + 166365.

Almost surely, 257668624 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 57668624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65245824).

57668624 is an abundant number, since it is smaller than the sum of its proper divisors (72823024).

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

57668624 is a wasteful number, since it uses less digits than its factorization.

57668624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 426 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 57668624 is about 7593.9860415990. The cubic root of 57668624 is about 386.3490627515.

The spelling of 57668624 in words is "fifty-seven million, six hundred sixty-eight thousand, six hundred twenty-four".

Divisors: 1 2 4 8 13 16 17 26 34 47 52 68 94 104 136 188 208 221 272 347 376 442 611 694 752 799 884 1222 1388 1598 1768 2444 2776 3196 3536 4511 4888 5552 5899 6392 9022 9776 10387 11798 12784 16309 18044 20774 23596 32618 36088 41548 47192 65236 72176 76687 83096 94384 130472 153374 166192 212017 260944 277253 306748 424034 554506 613496 848068 1109012 1226992 1696136 2218024 3392272 3604289 4436048 7208578 14417156 28834312 57668624