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12137892 = 22313292683
BaseRepresentation
bin101110010011…
…010110100100
3211211200001120
4232103112210
511101403032
61112053540
7205112304
oct56232644
924750046
1012137892
116940418
1240942b0
13268c9b0
14187d604
1510eb62c
hexb935a4

12137892 has 48 divisors (see below), whose sum is σ = 31563840. Its totient is φ = 3604608.

The previous prime is 12137861. The next prime is 12137899. The reversal of 12137892 is 29873121.

12137892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12137899) 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, 3183 + ... + 5865.

It is an arithmetic number, because the mean of its divisors is an integer number (657580).

Almost surely, 212137892 is an apocalyptic number.

12137892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12137892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15781920).

12137892 is an abundant number, since it is smaller than the sum of its proper divisors (19425948).

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

12137892 is a wasteful number, since it uses less digits than its factorization.

12137892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2730 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 12137892 is about 3483.9477608024. The cubic root of 12137892 is about 229.8164382905.

The spelling of 12137892 in words is "twelve million, one hundred thirty-seven thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 58 78 87 116 156 174 348 377 754 1131 1508 2262 2683 4524 5366 8049 10732 16098 32196 34879 69758 77807 104637 139516 155614 209274 233421 311228 418548 466842 933684 1011491 2022982 3034473 4045964 6068946 12137892