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12900499 = 58721977
BaseRepresentation
bin110001001101…
…100010010011
3220021102011021
4301031202103
511300303444
61140300311
7214436533
oct61154223
926242137
1012900499
117311377
1243a1697
132898b41
1419db4c3
1511ec584
hexc4d893

12900499 has 4 divisors (see below), whose sum is σ = 12923064. Its totient is φ = 12877936.

The previous prime is 12900491. The next prime is 12900521. The reversal of 12900499 is 99400921.

12900499 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99400921 = 175847113.

It is a cyclic number.

It is not a de Polignac number, because 12900499 - 23 = 12900491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12900491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10402 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (3230766).

Almost surely, 212900499 is an apocalyptic number.

12900499 is a deficient number, since it is larger than the sum of its proper divisors (22565).

12900499 is an equidigital number, since it uses as much as digits as its factorization.

12900499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22564.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12900499 is about 3591.7264650861. The cubic root of 12900499 is about 234.5320338791.

The spelling of 12900499 in words is "twelve million, nine hundred thousand, four hundred ninety-nine".

Divisors: 1 587 21977 12900499