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13802118 = 2311209123
BaseRepresentation
bin110100101001…
…101010000110
3221222012221120
4310221222012
512013131433
61211454410
7225213261
oct64515206
927865846
1013802118
117877810
124757406
132b23345
141b93cd8
1513297b3
hexd29a86

13802118 has 16 divisors (see below), whose sum is σ = 30113856. Its totient is φ = 4182440.

The previous prime is 13802083. The next prime is 13802123. The reversal of 13802118 is 81120831.

It is a super-2 number, since 2×138021182 = 380996922571848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 104496 + ... + 104627.

It is an arithmetic number, because the mean of its divisors is an integer number (1882116).

Almost surely, 213802118 is an apocalyptic number.

13802118 is an abundant number, since it is smaller than the sum of its proper divisors (16311738).

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

13802118 is a wasteful number, since it uses less digits than its factorization.

13802118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209139.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 13802118 is about 3715.1201864812. The cubic root of 13802118 is about 239.8733011815.

Adding to 13802118 its reverse (81120831), we get a palindrome (94922949).

The spelling of 13802118 in words is "thirteen million, eight hundred two thousand, one hundred eighteen".

Divisors: 1 2 3 6 11 22 33 66 209123 418246 627369 1254738 2300353 4600706 6901059 13802118