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12472979 = 411092791
BaseRepresentation
bin101111100101…
…001010010011
3212110200201012
4233211022103
511143113404
61123201135
7211006241
oct57451223
925420635
1012472979
11704a152
1242161ab
13277937c
141929791
151165a6e
hexbe5293

12472979 has 8 divisors (see below), whose sum is σ = 12899040. Its totient is φ = 12052800.

The previous prime is 12472973. The next prime is 12472997. The reversal of 12472979 is 97927421.

12472979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12472979 - 24 = 12472963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12472973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3074 + ... + 5864.

It is an arithmetic number, because the mean of its divisors is an integer number (1612380).

Almost surely, 212472979 is an apocalyptic number.

12472979 is a deficient number, since it is larger than the sum of its proper divisors (426061).

12472979 is a wasteful number, since it uses less digits than its factorization.

12472979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941.

The product of its digits is 63504, while the sum is 41.

The square root of 12472979 is about 3531.7104920987. The cubic root of 12472979 is about 231.9120938760.

The spelling of 12472979 in words is "twelve million, four hundred seventy-two thousand, nine hundred seventy-nine".

Divisors: 1 41 109 2791 4469 114431 304219 12472979