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13838992 = 241945523
BaseRepresentation
bin110100110010…
…101010010000
3222001002112021
4310302222100
512020321432
61212341224
7225425626
oct64625220
928032467
1013838992
1178a2492
124774814
132b3706b
141ba3516
151335697
hexd32a90

13838992 has 20 divisors (see below), whose sum is σ = 28224880. Its totient is φ = 6555168.

The previous prime is 13838987. The next prime is 13839041. The reversal of 13838992 is 29983831.

It is a happy number.

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, 22458 + ... + 23065.

It is an arithmetic number, because the mean of its divisors is an integer number (1411244).

Almost surely, 213838992 is an apocalyptic number.

It is an amenable number.

13838992 is an abundant number, since it is smaller than the sum of its proper divisors (14385888).

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

13838992 is a wasteful number, since it uses less digits than its factorization.

13838992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45550 (or 45544 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 13838992 is about 3720.0795690415. The cubic root of 13838992 is about 240.0867279149.

The spelling of 13838992 in words is "thirteen million, eight hundred thirty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 19 38 76 152 304 45523 91046 182092 364184 728368 864937 1729874 3459748 6919496 13838992