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13893337 = 24375701
BaseRepresentation
bin110100111111…
…111011011001
3222010212002001
4310333323121
512024041322
61213441001
7226043233
oct64777331
928125061
1013893337
11792a2a7
1247a0161
132b55a13
141bb9253
151346827
hexd3fed9

13893337 has 4 divisors (see below), whose sum is σ = 13901476. Its totient is φ = 13885200.

The previous prime is 13893329. The next prime is 13893353. The reversal of 13893337 is 73339831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 1390041 = 3536^2 + 1179^2 .

It is a cyclic number.

It is not a de Polignac number, because 13893337 - 23 = 13893329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13893296 and 13893305.

It is not an unprimeable number, because it can be changed into a prime (13893377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (3475369).

Almost surely, 213893337 is an apocalyptic number.

It is an amenable number.

13893337 is a deficient number, since it is larger than the sum of its proper divisors (8139).

13893337 is an equidigital number, since it uses as much as digits as its factorization.

13893337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8138.

The product of its digits is 40824, while the sum is 37.

The square root of 13893337 is about 3727.3766914547. The cubic root of 13893337 is about 240.4005867910.

The spelling of 13893337 in words is "thirteen million, eight hundred ninety-three thousand, three hundred thirty-seven".

Divisors: 1 2437 5701 13893337