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12538296 = 2332174143
BaseRepresentation
bin101111110101…
…000110111000
3212121000022100
4233311012320
511202211141
61124423400
7211400541
oct57650670
925530270
1012538296
117094231
124247b60
1327a0014
1419454c8
15117a0b6
hexbf51b8

12538296 has 24 divisors (see below), whose sum is σ = 33958080. Its totient is φ = 4179408.

The previous prime is 12538283. The next prime is 12538297. The reversal of 12538296 is 69283521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12538296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87000 + ... + 87143.

It is an arithmetic number, because the mean of its divisors is an integer number (1414920).

Almost surely, 212538296 is an apocalyptic number.

It is an amenable number.

12538296 is an abundant number, since it is smaller than the sum of its proper divisors (21419784).

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

12538296 is a wasteful number, since it uses less digits than its factorization.

12538296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174155 (or 174148 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12538296 is about 3540.9456364084. The cubic root of 12538296 is about 232.3162057698.

The spelling of 12538296 in words is "twelve million, five hundred thirty-eight thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 174143 348286 522429 696572 1044858 1393144 1567287 2089716 3134574 4179432 6269148 12538296