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13892292 = 2232385897
BaseRepresentation
bin110100111111…
…101011000100
3222010210122100
4310333223010
512024023132
61213432100
7226040211
oct64775304
928123570
1013892292
117929537
12479b630
132b553bb
141bb8b08
15134637c
hexd3fac4

13892292 has 18 divisors (see below), whose sum is σ = 35116718. Its totient is φ = 4630752.

The previous prime is 13892267. The next prime is 13892297. The reversal of 13892292 is 29229831.

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 9216 = 3726^2 + 96^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 385897 = 13892292 / (1 + 3 + 8 + 9 + 2 + 2 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (13892297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192913 + ... + 192984.

Almost surely, 213892292 is an apocalyptic number.

13892292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13892292 is an abundant number, since it is smaller than the sum of its proper divisors (21224426).

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

13892292 is a wasteful number, since it uses less digits than its factorization.

13892292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385907 (or 385902 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13892292 is about 3727.2365098019. The cubic root of 13892292 is about 240.3945593235.

The spelling of 13892292 in words is "thirteen million, eight hundred ninety-two thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 385897 771794 1157691 1543588 2315382 3473073 4630764 6946146 13892292