Search a number
-
+
57388630 = 25132811571
BaseRepresentation
bin1101101011101…
…0111001010110
310222222122101211
43122322321112
5104142414010
65410012034
71264536535
oct332727126
9128878354
1057388630
112a437a22
121727701a
13bb74490
14789c31c
15508908a
hex36bae56

57388630 has 32 divisors (see below), whose sum is σ = 111712608. Its totient is φ = 21100800.

The previous prime is 57388619. The next prime is 57388673. The reversal of 57388630 is 3688375.

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, 35745 + ... + 37315.

It is an arithmetic number, because the mean of its divisors is an integer number (3491019).

Almost surely, 257388630 is an apocalyptic number.

57388630 is a deficient number, since it is larger than the sum of its proper divisors (54323978).

57388630 is a wasteful number, since it uses less digits than its factorization.

57388630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 57388630 is about 7575.5283644113. The cubic root of 57388630 is about 385.7227778521.

The spelling of 57388630 in words is "fifty-seven million, three hundred eighty-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 281 562 1405 1571 2810 3142 3653 7306 7855 15710 18265 20423 36530 40846 102115 204230 441451 882902 2207255 4414510 5738863 11477726 28694315 57388630