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13902238 = 275771721
BaseRepresentation
bin110101000010…
…000110011110
3222011022021201
4311002012132
512024332423
61213550114
7226111210
oct65020636
928138251
1013902238
117935a59
1247a533a
132b59a9c
141bbc5b0
1513492ad
hexd4219e

13902238 has 16 divisors (see below), whose sum is σ = 23887584. Its totient is φ = 5944320.

The previous prime is 13902233. The next prime is 13902241. The reversal of 13902238 is 83220931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13902233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7218 + ... + 8938.

It is an arithmetic number, because the mean of its divisors is an integer number (1492974).

Almost surely, 213902238 is an apocalyptic number.

13902238 is a deficient number, since it is larger than the sum of its proper divisors (9985346).

13902238 is a wasteful number, since it uses less digits than its factorization.

13902238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13902238 is about 3728.5705035576. The cubic root of 13902238 is about 240.4519147241.

The spelling of 13902238 in words is "thirteen million, nine hundred two thousand, two hundred thirty-eight".

Divisors: 1 2 7 14 577 1154 1721 3442 4039 8078 12047 24094 993017 1986034 6951119 13902238