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12838130 = 258111583
BaseRepresentation
bin110000111110…
…010011110010
3220011020121022
4300332103302
511241310010
61135055442
7214056644
oct60762362
926136538
1012838130
117279528
124371582
132876636
1419c2894
1511d8d55
hexc3e4f2

12838130 has 16 divisors (see below), whose sum is σ = 23151744. Its totient is φ = 5125680.

The previous prime is 12838127. The next prime is 12838139. The reversal of 12838130 is 3183821.

It is a self number, because there is not a number n which added to its sum of digits gives 12838130.

It is not an unprimeable number, because it can be changed into a prime (12838139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7319 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (1446984).

Almost surely, 212838130 is an apocalyptic number.

12838130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12838130 is a deficient number, since it is larger than the sum of its proper divisors (10313614).

12838130 is a wasteful number, since it uses less digits than its factorization.

12838130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12838130 is about 3583.0336308776. The cubic root of 12838130 is about 234.1534654536.

The spelling of 12838130 in words is "twelve million, eight hundred thirty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 811 1583 1622 3166 4055 7915 8110 15830 1283813 2567626 6419065 12838130