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14471947 = 717313923
BaseRepresentation
bin110111001101…
…001100001011
31000020020210001
4313031030023
512201100242
61234103431
7234003160
oct67151413
930206701
1014471947
118194a96
124a1ab77
132cc91a9
141cca067
15140ceb7
hexdcd30b

14471947 has 16 divisors (see below), whose sum is σ = 18081792. Its totient is φ = 11295360.

The previous prime is 14471929. The next prime is 14471993. The reversal of 14471947 is 74917441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14471947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14471917) 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 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 5650.

It is an arithmetic number, because the mean of its divisors is an integer number (1130112).

Almost surely, 214471947 is an apocalyptic number.

14471947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

14471947 is a deficient number, since it is larger than the sum of its proper divisors (3609845).

14471947 is a wasteful number, since it uses less digits than its factorization.

14471947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978.

The product of its digits is 28224, while the sum is 37.

The square root of 14471947 is about 3804.2012302190. The cubic root of 14471947 is about 243.6925885387.

The spelling of 14471947 in words is "fourteen million, four hundred seventy-one thousand, nine hundred forty-seven".

Divisors: 1 7 17 31 119 217 527 3689 3923 27461 66691 121613 466837 851291 2067421 14471947