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57027894 = 237111753137
BaseRepresentation
bin1101100110001…
…0110100110110
310222022022120020
43121202310312
5104044343034
65354150010
71261505040
oct331426466
9128268506
1057027894
112a2109a0
1217122306
13ba79221
147806a90
155017249
hex3662d36

57027894 has 128 divisors (see below), whose sum is σ = 154524672. Its totient is φ = 13578240.

The previous prime is 57027881. The next prime is 57027899. The reversal of 57027894 is 49872075.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57027899) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 416194 + ... + 416330.

It is an arithmetic number, because the mean of its divisors is an integer number (1207224).

Almost surely, 257027894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57027894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77262336).

57027894 is an abundant number, since it is smaller than the sum of its proper divisors (97496778).

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

57027894 is a wasteful number, since it uses less digits than its factorization.

57027894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 57027894 is about 7551.6815345988. The cubic root of 57027894 is about 384.9128807207.

The spelling of 57027894 in words is "fifty-seven million, twenty-seven thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 7 11 14 17 21 22 33 34 42 51 53 66 77 102 106 119 137 154 159 187 231 238 274 318 357 371 374 411 462 561 583 714 742 822 901 959 1113 1122 1166 1309 1507 1749 1802 1918 2226 2329 2618 2703 2877 3014 3498 3927 4081 4521 4658 5406 5754 6307 6987 7261 7854 8162 9042 9911 10549 12243 12614 13974 14522 16303 18921 19822 21098 21783 24486 25619 29733 31647 32606 37842 43566 48909 50827 51238 59466 63294 69377 76857 79871 97818 101654 123437 138754 152481 153714 159742 179333 208131 239613 246874 304962 358666 370311 416262 479226 537999 559097 740622 864059 1075998 1118194 1357807 1677291 1728118 2592177 2715614 3354582 4073421 5184354 8146842 9504649 19009298 28513947 57027894