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13608812 = 2274389127
BaseRepresentation
bin110011111010…
…011101101100
3221121101210002
4303322131230
511440440222
61203403432
7223446560
oct63723554
927541702
1013608812
117755558
124683578
132a86369
141b436a0
1512dc392
hexcfa76c

13608812 has 48 divisors (see below), whose sum is σ = 28385280. Its totient is φ = 5588352.

The previous prime is 13608799. The next prime is 13608817. The reversal of 13608812 is 21880631.

It is not an unprimeable number, because it can be changed into a prime (13608817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107093 + ... + 107219.

It is an arithmetic number, because the mean of its divisors is an integer number (591360).

Almost surely, 213608812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13608812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14192640).

13608812 is an abundant number, since it is smaller than the sum of its proper divisors (14776468).

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

13608812 is a wasteful number, since it uses less digits than its factorization.

13608812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13608812 is about 3689.0123339452. The cubic root of 13608812 is about 238.7481810484.

The spelling of 13608812 in words is "thirteen million, six hundred eight thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 28 43 86 89 127 172 178 254 301 356 508 602 623 889 1204 1246 1778 2492 3556 3827 5461 7654 10922 11303 15308 21844 22606 26789 38227 45212 53578 76454 79121 107156 152908 158242 316484 486029 972058 1944116 3402203 6804406 13608812