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13911102 = 234431997
BaseRepresentation
bin110101000100…
…010000111110
3222011202110000
4311010100332
512030123402
61214055130
7226146102
oct65042076
928152400
1013911102
117941687
1247aa4a6
132b60b2a
141bc1902
15134bc1c
hexd4443e

13911102 has 40 divisors (see below), whose sum is σ = 31912056. Its totient is φ = 4526928.

The previous prime is 13911071. The next prime is 13911109. The reversal of 13911102 is 20111931.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13911109) 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 19 ways as a sum of consecutive naturals, for example, 5968 + ... + 7964.

Almost surely, 213911102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13911102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15956028).

13911102 is an abundant number, since it is smaller than the sum of its proper divisors (18000954).

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

13911102 is a wasteful number, since it uses less digits than its factorization.

13911102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 13911102 is about 3729.7589734459. The cubic root of 13911102 is about 240.5030075278.

The spelling of 13911102 in words is "thirteen million, nine hundred eleven thousand, one hundred two".

Divisors: 1 2 3 6 9 18 27 43 54 81 86 129 162 258 387 774 1161 1997 2322 3483 3994 5991 6966 11982 17973 35946 53919 85871 107838 161757 171742 257613 323514 515226 772839 1545678 2318517 4637034 6955551 13911102