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12634308 = 2232714943
BaseRepresentation
bin110000001100…
…100011000100
3212202220000100
4300030203010
511213244213
61130444100
7212250501
oct60144304
925686010
1012634308
11714a385
124293630
13280492b
14196c4a8
151198773
hexc0c8c4

12634308 has 36 divisors (see below), whose sum is σ = 32393088. Its totient is φ = 4151280.

The previous prime is 12634301. The next prime is 12634313. The reversal of 12634308 is 80343621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (12634301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (899808).

Almost surely, 212634308 is an apocalyptic number.

12634308 is a gapful number since it is divisible by the number (18) 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 12634308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16196544).

12634308 is an abundant number, since it is smaller than the sum of its proper divisors (19758780).

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

12634308 is a wasteful number, since it uses less digits than its factorization.

12634308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12634308 is about 3554.4771767448. The cubic root of 12634308 is about 232.9076856819.

Adding to 12634308 its reverse (80343621), we get a palindrome (92977929).

The spelling of 12634308 in words is "twelve million, six hundred thirty-four thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1278 2556 4943 9886 14829 19772 29658 44487 59316 88974 177948 350953 701906 1052859 1403812 2105718 3158577 4211436 6317154 12634308