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14305913 = 113126601
BaseRepresentation
bin110110100100…
…101001111001
3222220211000122
4312210221321
512130242123
61230343025
7232412126
oct66445171
928824018
1014305913
118091276
12495aa75
132c6b74b
141c8574d
1513c8bc8
hexda4a79

14305913 has 4 divisors (see below), whose sum is σ = 14432628. Its totient is φ = 14179200.

The previous prime is 14305909. The next prime is 14305927. The reversal of 14305913 is 31950341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31950341 = 44837127.

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 7166329 = 2672^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 14305913 - 22 = 14305909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14305013) 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 3 ways as a sum of consecutive naturals, for example, 63188 + ... + 63413.

It is an arithmetic number, because the mean of its divisors is an integer number (3608157).

Almost surely, 214305913 is an apocalyptic number.

It is an amenable number.

14305913 is a deficient number, since it is larger than the sum of its proper divisors (126715).

14305913 is a wasteful number, since it uses less digits than its factorization.

14305913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126714.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 14305913 is about 3782.3158249940. The cubic root of 14305913 is about 242.7570548021.

The spelling of 14305913 in words is "fourteen million, three hundred five thousand, nine hundred thirteen".

Divisors: 1 113 126601 14305913