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13138164 = 22321367419
BaseRepresentation
bin110010000111…
…100011110100
3220201111011200
4302013203310
511330410124
61145332500
7216446454
oct62074364
926644150
1013138164
117463996
124497130
132950080
141a5dd64
151247bc9
hexc878f4

13138164 has 72 divisors (see below), whose sum is σ = 36385440. Its totient is φ = 3972672.

The previous prime is 13138159. The next prime is 13138183. The reversal of 13138164 is 46183131.

13138164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131381642 = 345222706581792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31147 + ... + 31565.

Almost surely, 213138164 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 13138164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18192720).

13138164 is an abundant number, since it is smaller than the sum of its proper divisors (23247276).

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

13138164 is a wasteful number, since it uses less digits than its factorization.

13138164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 504 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 13138164 is about 3624.6605358295. The cubic root of 13138164 is about 235.9635345363.

The spelling of 13138164 in words is "thirteen million, one hundred thirty-eight thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 67 78 117 134 156 201 234 268 402 419 468 603 804 838 871 1206 1257 1676 1742 2412 2514 2613 3484 3771 5028 5226 5447 7542 7839 10452 10894 15084 15678 16341 21788 28073 31356 32682 49023 56146 65364 84219 98046 112292 168438 196092 252657 336876 364949 505314 729898 1010628 1094847 1459796 2189694 3284541 4379388 6569082 13138164