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12304513 = 137113331
BaseRepresentation
bin101110111100…
…000010000001
3212011010121201
4232330002001
511122221023
61115421201
7206405134
oct56740201
925133551
1012304513
116a44621
124154801
13271a7a0
1418c421b
151130bad
hexbbc081

12304513 has 8 divisors (see below), whose sum is σ = 13438656. Its totient is φ = 11197200.

The previous prime is 12304511. The next prime is 12304519. The reversal of 12304513 is 31540321.

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 12304513 - 21 = 12304511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12304511) 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, 5743 + ... + 7588.

It is an arithmetic number, because the mean of its divisors is an integer number (1679832).

Almost surely, 212304513 is an apocalyptic number.

12304513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12304513 is a deficient number, since it is larger than the sum of its proper divisors (1134143).

12304513 is a wasteful number, since it uses less digits than its factorization.

12304513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12304513 is about 3507.7789268995. The cubic root of 12304513 is about 230.8632524599.

Adding to 12304513 its reverse (31540321), we get a palindrome (43844834).

The spelling of 12304513 in words is "twelve million, three hundred four thousand, five hundred thirteen".

Divisors: 1 13 71 923 13331 173303 946501 12304513