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188104136 = 23112137547
BaseRepresentation
bin10110011011000…
…11110111001000
3111002221200100212
423031203313020
5341123313021
630355420252
74442600363
oct1315436710
9432850325
10188104136
11971a8470
1252bb4688
132cc8082c
141ada70da
15117a985b
hexb363dc8

188104136 has 16 divisors (see below), whose sum is σ = 384758640. Its totient is φ = 85501840.

The previous prime is 188104129. The next prime is 188104141. The reversal of 188104136 is 631401881.

It is a happy number.

188104136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068686 + ... + 1068861.

It is an arithmetic number, because the mean of its divisors is an integer number (24047415).

Almost surely, 2188104136 is an apocalyptic number.

It is an amenable number.

188104136 is an abundant number, since it is smaller than the sum of its proper divisors (196654504).

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

188104136 is a wasteful number, since it uses less digits than its factorization.

188104136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137564 (or 2137560 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 188104136 is about 13715.1061242704. The cubic root of 188104136 is about 572.9711849727.

The spelling of 188104136 in words is "one hundred eighty-eight million, one hundred four thousand, one hundred thirty-six".

Divisors: 1 2 4 8 11 22 44 88 2137547 4275094 8550188 17100376 23513017 47026034 94052068 188104136