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14121947 = 72288203
BaseRepresentation
bin110101110111…
…101111011011
3222120110200002
4311313233123
512103400242
61222403215
7231014600
oct65675733
928513602
1014121947
117a76034
12489050b
132c05aa8
141c386a7
15138e432
hexd77bdb

14121947 has 6 divisors (see below), whose sum is σ = 16427628. Its totient is φ = 12104484.

The previous prime is 14121941. The next prime is 14121953. The reversal of 14121947 is 74912141.

It is an interprime number because it is at equal distance from previous prime (14121941) and next prime (14121953).

It is not a de Polignac number, because 14121947 - 220 = 13073371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14121941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144053 + ... + 144150.

It is an arithmetic number, because the mean of its divisors is an integer number (2737938).

Almost surely, 214121947 is an apocalyptic number.

14121947 is a deficient number, since it is larger than the sum of its proper divisors (2305681).

14121947 is an equidigital number, since it uses as much as digits as its factorization.

14121947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288217 (or 288210 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 14121947 is about 3757.9179075653. The cubic root of 14121947 is about 241.7119891743.

The spelling of 14121947 in words is "fourteen million, one hundred twenty-one thousand, nine hundred forty-seven".

Divisors: 1 7 49 288203 2017421 14121947