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12480079 = 16217699
BaseRepresentation
bin101111100110…
…111001001111
3212111001110011
4233212321033
511143330304
61123254051
7211036033
oct57467117
925431404
1012480079
117054517
12421a327
13277c681
14192c1c3
151167c04
hexbe6e4f

12480079 has 4 divisors (see below), whose sum is σ = 12489400. Its totient is φ = 12470760.

The previous prime is 12480049. The next prime is 12480089. The reversal of 12480079 is 97008421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12480079 - 29 = 12479567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12480079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229 + ... + 5470.

It is an arithmetic number, because the mean of its divisors is an integer number (3122350).

Almost surely, 212480079 is an apocalyptic number.

12480079 is a deficient number, since it is larger than the sum of its proper divisors (9321).

12480079 is an equidigital number, since it uses as much as digits as its factorization.

12480079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9320.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12480079 is about 3532.7155277492. The cubic root of 12480079 is about 231.9560893412.

The spelling of 12480079 in words is "twelve million, four hundred eighty thousand, seventy-nine".

Divisors: 1 1621 7699 12480079