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187044 = 2231113109
BaseRepresentation
bin101101101010100100
3100111120120
4231222210
521441134
64001540
71406214
oct555244
9314516
10187044
11118590
12902b0
13671a0
144c244
153a649
hex2daa4

187044 has 48 divisors (see below), whose sum is σ = 517440. Its totient is φ = 51840.

The previous prime is 187043. The next prime is 187049. The reversal of 187044 is 440781.

187044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (187043) 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, 1662 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (10780).

2187044 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 187044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258720).

187044 is an abundant number, since it is smaller than the sum of its proper divisors (330396).

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

187044 is a wasteful number, since it uses less digits than its factorization.

187044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 187044 is about 432.4858379184. The cubic root of 187044 is about 57.1892753786.

The spelling of 187044 in words is "one hundred eighty-seven thousand, forty-four".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 109 132 143 156 218 286 327 429 436 572 654 858 1199 1308 1417 1716 2398 2834 3597 4251 4796 5668 7194 8502 14388 15587 17004 31174 46761 62348 93522 187044