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13823944 = 231990947
BaseRepresentation
bin110100101110…
…111111001000
3222000022212221
4310232333020
512014331234
61212143424
7225334021
oct64567710
928008787
1013823944
117892152
124767b74
132b30264
141b9bc48
151330eb4
hexd2efc8

13823944 has 16 divisors (see below), whose sum is σ = 27284400. Its totient is φ = 6548112.

The previous prime is 13823921. The next prime is 13823947. The reversal of 13823944 is 44932831.

It is a super-2 number, since 2×138239442 = 382202855430272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13823947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45322 + ... + 45625.

It is an arithmetic number, because the mean of its divisors is an integer number (1705275).

Almost surely, 213823944 is an apocalyptic number.

It is an amenable number.

13823944 is a deficient number, since it is larger than the sum of its proper divisors (13460456).

13823944 is a wasteful number, since it uses less digits than its factorization.

13823944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90972 (or 90968 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 13823944 is about 3718.0564815505. The cubic root of 13823944 is about 239.9996759255. Note that the first 3 decimals are identical.

The spelling of 13823944 in words is "thirteen million, eight hundred twenty-three thousand, nine hundred forty-four".

Divisors: 1 2 4 8 19 38 76 152 90947 181894 363788 727576 1727993 3455986 6911972 13823944