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12875500 = 2253112341
BaseRepresentation
bin110001000111…
…011011101100
3220020010212101
4301013123230
511244004000
61135544444
7214303621
oct61073354
926203771
1012875500
1172a4610
12438b124
13288a651
1419d2348
1511e4e6a
hexc476ec

12875500 has 48 divisors (see below), whose sum is σ = 30689568. Its totient is φ = 4680000.

The previous prime is 12875497. The next prime is 12875503. The reversal of 12875500 is 557821.

It is an interprime number because it is at equal distance from previous prime (12875497) and next prime (12875503).

It is not an unprimeable number, because it can be changed into a prime (12875503) 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 15 ways as a sum of consecutive naturals, for example, 4330 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (639366).

Almost surely, 212875500 is an apocalyptic number.

12875500 is a gapful number since it is divisible by the number (10) 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 12875500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15344784).

12875500 is an abundant number, since it is smaller than the sum of its proper divisors (17814068).

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

12875500 is a wasteful number, since it uses less digits than its factorization.

12875500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12875500 is about 3588.2446962268. The cubic root of 12875500 is about 234.3804413552.

The spelling of 12875500 in words is "twelve million, eight hundred seventy-five thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 1100 1375 2341 2750 4682 5500 9364 11705 23410 25751 46820 51502 58525 103004 117050 128755 234100 257510 292625 515020 585250 643775 1170500 1287550 2575100 3218875 6437750 12875500