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14087539 = 82117159
BaseRepresentation
bin110101101111…
…010101110011
3222111201110201
4311233111303
512101300124
61221540031
7230512354
oct65572563
928451421
1014087539
117a521a4
124874617
132bc322b
141c29d2b
151384144
hexd6f573

14087539 has 4 divisors (see below), whose sum is σ = 14105520. Its totient is φ = 14069560.

The previous prime is 14087537. The next prime is 14087551. The reversal of 14087539 is 93578041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93578041 = 293226829.

It is a cyclic number.

It is not a de Polignac number, because 14087539 - 21 = 14087537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14087498 and 14087507.

It is not an unprimeable number, because it can be changed into a prime (14087537) 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, 7759 + ... + 9400.

It is an arithmetic number, because the mean of its divisors is an integer number (3526380).

Almost surely, 214087539 is an apocalyptic number.

14087539 is a deficient number, since it is larger than the sum of its proper divisors (17981).

14087539 is an equidigital number, since it uses as much as digits as its factorization.

14087539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17980.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 14087539 is about 3753.3370485476. The cubic root of 14087539 is about 241.5155198087.

The spelling of 14087539 in words is "fourteen million, eighty-seven thousand, five hundred thirty-nine".

Divisors: 1 821 17159 14087539