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12824238 = 237305339
BaseRepresentation
bin110000111010…
…111010101110
3220010112112210
4300322322232
511240333423
61134511250
7214001310
oct60727256
926115483
1012824238
11726a049
124365526
13287020b
1419bb7b0
1511d4b93
hexc3aeae

12824238 has 16 divisors (see below), whose sum is σ = 29312640. Its totient is φ = 3664056.

The previous prime is 12824219. The next prime is 12824243. The reversal of 12824238 is 83242821.

It is a super-2 number, since 2×128242382 = 328922160561288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152628 + ... + 152711.

It is an arithmetic number, because the mean of its divisors is an integer number (1832040).

Almost surely, 212824238 is an apocalyptic number.

12824238 is an abundant number, since it is smaller than the sum of its proper divisors (16488402).

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

12824238 is a wasteful number, since it uses less digits than its factorization.

12824238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305351.

The product of its digits is 6144, while the sum is 30.

The square root of 12824238 is about 3581.0945254210. The cubic root of 12824238 is about 234.0689766705.

The spelling of 12824238 in words is "twelve million, eight hundred twenty-four thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 305339 610678 916017 1832034 2137373 4274746 6412119 12824238