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12499249 = 78920063
BaseRepresentation
bin101111101011…
…100100110001
3212112000202011
4233223210301
511144433444
61123522521
7211145650
oct57534461
925460664
1012499249
117067964
124229441
132788309
141935197
15116d734
hexbeb931

12499249 has 8 divisors (see below), whose sum is σ = 14446080. Its totient is φ = 10592736.

The previous prime is 12499247. The next prime is 12499271. The reversal of 12499249 is 94299421.

12499249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12499249 - 21 = 12499247 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (12499247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9409 + ... + 10654.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 212499249 is an apocalyptic number.

It is an amenable number.

12499249 is a deficient number, since it is larger than the sum of its proper divisors (1946831).

12499249 is an equidigital number, since it uses as much as digits as its factorization.

12499249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159.

The product of its digits is 46656, while the sum is 40.

The square root of 12499249 is about 3535.4276968989. The cubic root of 12499249 is about 232.0747938099.

It can be divided in two parts, 1249924 and 9, that multiplied together give a square (11249316 = 33542).

The spelling of 12499249 in words is "twelve million, four hundred ninety-nine thousand, two hundred forty-nine".

Divisors: 1 7 89 623 20063 140441 1785607 12499249