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27828944 = 24111312163
BaseRepresentation
bin110101000101…
…0001011010000
31221100212010122
41222022023100
524111011234
62432245412
7455353643
oct152121320
957325118
1027828944
1114788330
1293a0868
1359c4a40
1439a5a5a
15269a92e
hex1a8a2d0

27828944 has 40 divisors (see below), whose sum is σ = 63350112. Its totient is φ = 11675520.

The previous prime is 27828937. The next prime is 27828961. The reversal of 27828944 is 44982872.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 27828895 and 27828904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3794 + ... + 8369.

Almost surely, 227828944 is an apocalyptic number.

It is an amenable number.

27828944 is an abundant number, since it is smaller than the sum of its proper divisors (35521168).

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

27828944 is a wasteful number, since it uses less digits than its factorization.

27828944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12195 (or 12189 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 27828944 is about 5275.3145877758. The cubic root of 27828944 is about 303.0392684749.

The spelling of 27828944 in words is "twenty-seven million, eight hundred twenty-eight thousand, nine hundred forty-four".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 104 143 176 208 286 572 1144 2288 12163 24326 48652 97304 133793 158119 194608 267586 316238 535172 632476 1070344 1264952 1739309 2140688 2529904 3478618 6957236 13914472 27828944