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12498985 = 57931643
BaseRepresentation
bin101111101011…
…100000101001
3212112000101101
4233223200221
511144431420
61123521401
7211145122
oct57534051
925460341
1012498985
117067744
124229261
132788165
141935049
15116d60a
hexbeb829

12498985 has 8 divisors (see below), whose sum is σ = 15189120. Its totient is φ = 9872304.

The previous prime is 12498977. The next prime is 12498989. The reversal of 12498985 is 58989421.

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 12498985 - 23 = 12498977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12498989) 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, 15427 + ... + 16216.

It is an arithmetic number, because the mean of its divisors is an integer number (1898640).

Almost surely, 212498985 is an apocalyptic number.

It is an amenable number.

12498985 is a deficient number, since it is larger than the sum of its proper divisors (2690135).

12498985 is an equidigital number, since it uses as much as digits as its factorization.

12498985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31727.

The product of its digits is 207360, while the sum is 46.

The square root of 12498985 is about 3535.3903603421. The cubic root of 12498985 is about 232.0731598937.

The spelling of 12498985 in words is "twelve million, four hundred ninety-eight thousand, nine hundred eighty-five".

Divisors: 1 5 79 395 31643 158215 2499797 12498985