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12136284 = 22331031091
BaseRepresentation
bin101110010010…
…111101011100
3211211120212000
4232102331130
511101330114
61112042300
7205104516
oct56227534
924746760
1012136284
11693a196
124093390
13268c044
14187cbb6
1510eae09
hexb92f5c

12136284 has 48 divisors (see below), whose sum is σ = 31799040. Its totient is φ = 4002480.

The previous prime is 12136279. The next prime is 12136291. The reversal of 12136284 is 48263121.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 10579 + ... + 11669.

It is an arithmetic number, because the mean of its divisors is an integer number (662480).

Almost surely, 212136284 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 12136284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15899520).

12136284 is an abundant number, since it is smaller than the sum of its proper divisors (19662756).

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

12136284 is a wasteful number, since it uses less digits than its factorization.

12136284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1199 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 12136284 is about 3483.7169804678. The cubic root of 12136284 is about 229.8062893247.

The spelling of 12136284 in words is "twelve million, one hundred thirty-six thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 103 108 206 309 412 618 927 1091 1236 1854 2182 2781 3273 3708 4364 5562 6546 9819 11124 13092 19638 29457 39276 58914 112373 117828 224746 337119 449492 674238 1011357 1348476 2022714 3034071 4045428 6068142 12136284