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12992503 = 31715903
BaseRepresentation
bin110001100011…
…111111110111
3220110002100211
4301203333313
511311230003
61142250251
7215302006
oct61437767
926402324
1012992503
117374507
124426987
1328cb994
141a22c3d
15121996d
hexc63ff7

12992503 has 8 divisors (see below), whose sum is σ = 13602816. Its totient is φ = 12394200.

The previous prime is 12992501. The next prime is 12992519. The reversal of 12992503 is 30529921.

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

It is a cyclic number.

It is not a de Polignac number, because 12992503 - 21 = 12992501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12992501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (1700352).

Almost surely, 212992503 is an apocalyptic number.

12992503 is a deficient number, since it is larger than the sum of its proper divisors (610313).

12992503 is an equidigital number, since it uses as much as digits as its factorization.

12992503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 12992503 is about 3604.5114786889. The cubic root of 12992503 is about 235.0882601929.

The spelling of 12992503 in words is "twelve million, nine hundred ninety-two thousand, five hundred three".

Divisors: 1 31 71 2201 5903 182993 419113 12992503