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13904292 = 2234789277
BaseRepresentation
bin110101000010…
…100110100100
3222011102002210
4311002212210
512024414132
61214003420
7226120203
oct65024644
928142083
1013904292
117937556
1247a6570
132b5a9bc
141bbd23a
151349bcc
hexd429a4

13904292 has 48 divisors (see below), whose sum is σ = 33626880. Its totient is φ = 4468992.

The previous prime is 13904291. The next prime is 13904323. The reversal of 13904292 is 29240931.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13904291) 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, 50058 + ... + 50334.

It is an arithmetic number, because the mean of its divisors is an integer number (700560).

Almost surely, 213904292 is an apocalyptic number.

13904292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13904292 is an abundant number, since it is smaller than the sum of its proper divisors (19722588).

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

13904292 is a wasteful number, since it uses less digits than its factorization.

13904292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13904292 is about 3728.8459340659. The cubic root of 13904292 is about 240.4637560768.

It can be divided in two parts, 13904 and 292, that added together give a triangular number (14196 = T168).

The spelling of 13904292 in words is "thirteen million, nine hundred four thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 47 89 94 141 178 188 267 277 282 356 534 554 564 831 1068 1108 1662 3324 4183 8366 12549 13019 16732 24653 25098 26038 39057 49306 50196 52076 73959 78114 98612 147918 156228 295836 1158691 2317382 3476073 4634764 6952146 13904292