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12317893 = 75473217
BaseRepresentation
bin101110111111…
…010011000101
3212011210222021
4232333103011
511123133033
61120003141
7206462140
oct56772305
925153867
1012317893
116a53685
1241604b1
1327238c3
1418c9057
151134b2d
hexbbf4c5

12317893 has 8 divisors (see below), whose sum is σ = 14107712. Its totient is φ = 10535616.

The previous prime is 12317869. The next prime is 12317897. The reversal of 12317893 is 39871321.

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

It is not a de Polignac number, because 12317893 - 29 = 12317381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317897) 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, 2221 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (1763464).

Almost surely, 212317893 is an apocalyptic number.

It is an amenable number.

12317893 is a deficient number, since it is larger than the sum of its proper divisors (1789819).

12317893 is an equidigital number, since it uses as much as digits as its factorization.

12317893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its digits is 9072, while the sum is 34.

The square root of 12317893 is about 3509.6855984547. The cubic root of 12317893 is about 230.9469028340.

The spelling of 12317893 in words is "twelve million, three hundred seventeen thousand, eight hundred ninety-three".

Divisors: 1 7 547 3217 3829 22519 1759699 12317893