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13828056 = 2331152379
BaseRepresentation
bin110100101111…
…111111011000
3222000112112020
4310233333120
512014444211
61212214440
7225352014
oct64577730
928015466
1013828056
117895250
12476a420
132b320a8
141b9d544
151332306
hexd2ffd8

13828056 has 32 divisors (see below), whose sum is σ = 37713600. Its totient is φ = 4190240.

The previous prime is 13828043. The next prime is 13828057. The reversal of 13828056 is 65082831.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13828057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25926 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (1178550).

Almost surely, 213828056 is an apocalyptic number.

It is an amenable number.

13828056 is an abundant number, since it is smaller than the sum of its proper divisors (23885544).

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

13828056 is a wasteful number, since it uses less digits than its factorization.

13828056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52399 (or 52395 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13828056 is about 3718.6094175108. The cubic root of 13828056 is about 240.0234699270.

The spelling of 13828056 in words is "thirteen million, eight hundred twenty-eight thousand, fifty-six".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 52379 104758 157137 209516 314274 419032 576169 628548 1152338 1257096 1728507 2304676 3457014 4609352 6914028 13828056