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14307979 = 72043997
BaseRepresentation
bin110110100101…
…001010001011
3222220220212011
4312211022023
512130323404
61230400351
7232421140
oct66451213
928826764
1014307979
118092884
1249600b7
132c6c67a
141c863c7
1513c9604
hexda528b

14307979 has 4 divisors (see below), whose sum is σ = 16351984. Its totient is φ = 12263976.

The previous prime is 14307973. The next prime is 14307983. The reversal of 14307979 is 97970341.

14307979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14307979 - 23 = 14307971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14307971) 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, 1021992 + ... + 1022005.

It is an arithmetic number, because the mean of its divisors is an integer number (4087996).

Almost surely, 214307979 is an apocalyptic number.

14307979 is a deficient number, since it is larger than the sum of its proper divisors (2044005).

14307979 is an equidigital number, since it uses as much as digits as its factorization.

14307979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044004.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 14307979 is about 3782.5889282342. The cubic root of 14307979 is about 242.7687402251.

It can be divided in two parts, 1430 and 7979, that added together give a square (9409 = 972).

The spelling of 14307979 in words is "fourteen million, three hundred seven thousand, nine hundred seventy-nine".

Divisors: 1 7 2043997 14307979