Search a number
-
+
12493915 = 57356969
BaseRepresentation
bin101111101010…
…010001011011
3212111202102121
4233222101123
511144301130
61123442111
7211124260
oct57522133
925452377
1012493915
117063955
124226337
132785a65
141933267
15116bd7a
hexbea45b

12493915 has 8 divisors (see below), whose sum is σ = 17134560. Its totient is φ = 8567232.

The previous prime is 12493847. The next prime is 12493919. The reversal of 12493915 is 51939421.

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 12493915 - 211 = 12491867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12493919) 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, 178450 + ... + 178519.

It is an arithmetic number, because the mean of its divisors is an integer number (2141820).

Almost surely, 212493915 is an apocalyptic number.

12493915 is a deficient number, since it is larger than the sum of its proper divisors (4640645).

12493915 is an equidigital number, since it uses as much as digits as its factorization.

12493915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356981.

The product of its digits is 9720, while the sum is 34.

The square root of 12493915 is about 3534.6732522257. The cubic root of 12493915 is about 232.0417768108.

The spelling of 12493915 in words is "twelve million, four hundred ninety-three thousand, nine hundred fifteen".

Divisors: 1 5 7 35 356969 1784845 2498783 12493915