Search a number
-
+
12311425 = 52770351
BaseRepresentation
bin101110111101…
…101110000001
3212011111002201
4232331232001
511122431200
61115513201
7206434240
oct56755601
925144081
1012311425
116a49835
124158801
132720989
1418c6957
151132c6a
hexbbdb81

12311425 has 12 divisors (see below), whose sum is σ = 17447296. Its totient is φ = 8442000.

The previous prime is 12311419. The next prime is 12311443. The reversal of 12311425 is 52411321.

It is not a de Polignac number, because 12311425 - 29 = 12310913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35001 + ... + 35350.

Almost surely, 212311425 is an apocalyptic number.

It is an amenable number.

12311425 is a deficient number, since it is larger than the sum of its proper divisors (5135871).

12311425 is an equidigital number, since it uses as much as digits as its factorization.

12311425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70368 (or 70363 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 12311425 is about 3508.7640274034. The cubic root of 12311425 is about 230.9064731355.

Adding to 12311425 its reverse (52411321), we get a palindrome (64722746).

The spelling of 12311425 in words is "twelve million, three hundred eleven thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 70351 351755 492457 1758775 2462285 12311425