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13908836 = 22192373109
BaseRepresentation
bin110101000011…
…101101100100
3222011122100002
4311003231210
512030040321
61214040432
7226136354
oct65035544
928148302
1013908836
11793aa07
1247a9118
132b5caa6
141bc0b64
15134b20b
hexd43b64

13908836 has 48 divisors (see below), whose sum is σ = 27350400. Its totient is φ = 6158592.

The previous prime is 13908827. The next prime is 13908841. The reversal of 13908836 is 63880931.

13908836 = T1 + T2 + ... + T436.

13908836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13908836 is a nontrivial binomial coefficient, being equal to C(438, 3).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 13908836.

It is an unprimeable number.

It is the 436-th tetrahedral number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127550 + ... + 127658.

It is an arithmetic number, because the mean of its divisors is an integer number (569800).

Almost surely, 213908836 is an apocalyptic number.

It is an amenable number.

13908836 is a deficient number, since it is larger than the sum of its proper divisors (13441564).

13908836 is a wasteful number, since it uses less digits than its factorization.

13908836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 13908836 is about 3729.4551880938. The cubic root of 13908836 is about 240.4899481883.

The spelling of 13908836 in words is "thirteen million, nine hundred eight thousand, eight hundred thirty-six".

Divisors: 1 2 4 19 23 38 46 73 76 92 109 146 218 292 436 437 874 1387 1679 1748 2071 2507 2774 3358 4142 5014 5548 6716 7957 8284 10028 15914 31828 31901 47633 63802 95266 127604 151183 183011 190532 302366 366022 604732 732044 3477209 6954418 13908836