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13812204 = 2237164431
BaseRepresentation
bin110100101100…
…000111101100
3221222201210010
4310230013230
512013442304
61212013220
7225254550
oct64540754
927881703
1013812204
11788434a
124761210
132b27b03
141b97860
15132c789
hexd2c1ec

13812204 has 24 divisors (see below), whose sum is σ = 36832768. Its totient is φ = 3946320.

The previous prime is 13812199. The next prime is 13812209. The reversal of 13812204 is 40221831.

13812204 = T197 + T198 + ... + T448.

13812204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13812199) and next prime (13812209).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13812209) 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, 82132 + ... + 82299.

Almost surely, 213812204 is an apocalyptic number.

13812204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13812204 is an abundant number, since it is smaller than the sum of its proper divisors (23020564).

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

13812204 is a wasteful number, since it uses less digits than its factorization.

13812204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164445 (or 164443 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13812204 is about 3716.4773643869. The cubic root of 13812204 is about 239.9317166854.

The spelling of 13812204 in words is "thirteen million, eight hundred twelve thousand, two hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 164431 328862 493293 657724 986586 1151017 1973172 2302034 3453051 4604068 6906102 13812204