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13100412 = 22313791063
BaseRepresentation
bin110001111110…
…010101111100
3220122120101110
4301332111330
511323203122
61144442020
7216231423
oct61762574
926576343
1013100412
117438596
124479310
132938b30
141a502ba
15123b90c
hexc7e57c

13100412 has 48 divisors (see below), whose sum is σ = 33367040. Its totient is φ = 3976128.

The previous prime is 13100401. The next prime is 13100459. The reversal of 13100412 is 21400131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11793 + ... + 12855.

Almost surely, 213100412 is an apocalyptic number.

13100412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13100412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16683520).

13100412 is an abundant number, since it is smaller than the sum of its proper divisors (20266628).

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

13100412 is a wasteful number, since it uses less digits than its factorization.

13100412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13100412 is about 3619.4491293566. The cubic root of 13100412 is about 235.7373070523.

Adding to 13100412 its reverse (21400131), we get a palindrome (34500543).

The spelling of 13100412 in words is "thirteen million, one hundred thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 79 156 158 237 316 474 948 1027 1063 2054 2126 3081 3189 4108 4252 6162 6378 12324 12756 13819 27638 41457 55276 82914 83977 165828 167954 251931 335908 503862 1007724 1091701 2183402 3275103 4366804 6550206 13100412