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13893593 = 71984799
BaseRepresentation
bin110100111111…
…111111011001
3222010212102112
4310333333121
512024043333
61213442105
7226044050
oct64777731
928125375
1013893593
11792a50a
1247a0335
132b55b7c
141bb9397
151346948
hexd3ffd9

13893593 has 4 divisors (see below), whose sum is σ = 15878400. Its totient is φ = 11908788.

The previous prime is 13893553. The next prime is 13893613. The reversal of 13893593 is 39539831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39539831 = 47841273.

It is a cyclic number.

It is not a de Polignac number, because 13893593 - 214 = 13877209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13893593.

It is not an unprimeable number, because it can be changed into a prime (13893553) 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, 992393 + ... + 992406.

It is an arithmetic number, because the mean of its divisors is an integer number (3969600).

Almost surely, 213893593 is an apocalyptic number.

It is an amenable number.

13893593 is a deficient number, since it is larger than the sum of its proper divisors (1984807).

13893593 is an equidigital number, since it uses as much as digits as its factorization.

13893593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984806.

The product of its digits is 87480, while the sum is 41.

The square root of 13893593 is about 3727.4110318021. The cubic root of 13893593 is about 240.4020633302.

The spelling of 13893593 in words is "thirteen million, eight hundred ninety-three thousand, five hundred ninety-three".

Divisors: 1 7 1984799 13893593