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12872503 = 74613989
BaseRepresentation
bin110001000110…
…101100110111
3220012222202101
4301012230313
511243410003
61135522531
7214262110
oct61065467
926188671
1012872503
1172a2336
124389447
132889187
1419d1207
1511e411d
hexc46b37

12872503 has 8 divisors (see below), whose sum is σ = 14747040. Its totient is φ = 11006880.

The previous prime is 12872473. The next prime is 12872507. The reversal of 12872503 is 30527821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12872503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872507) 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, 1233 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 212872503 is an apocalyptic number.

12872503 is a deficient number, since it is larger than the sum of its proper divisors (1874537).

12872503 is an equidigital number, since it uses as much as digits as its factorization.

12872503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12872503 is about 3587.8270582624. The cubic root of 12872503 is about 234.3622545484.

The spelling of 12872503 in words is "twelve million, eight hundred seventy-two thousand, five hundred three".

Divisors: 1 7 461 3227 3989 27923 1838929 12872503