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13892389 = 71999973
BaseRepresentation
bin110100111111…
…101100100101
3222010210202221
4310333230211
512024024024
61213432341
7226040410
oct64775445
928123687
1013892389
117929615
12479b6b1
132b55464
141bb8b77
1513463e4
hexd3fb25

13892389 has 8 divisors (see below), whose sum is σ = 15958400. Its totient is φ = 11846736.

The previous prime is 13892341. The next prime is 13892407. The reversal of 13892389 is 98329831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13892389 - 27 = 13892261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13898389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3594 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (1994800).

Almost surely, 213892389 is an apocalyptic number.

It is an amenable number.

13892389 is a deficient number, since it is larger than the sum of its proper divisors (2066011).

13892389 is an equidigital number, since it uses as much as digits as its factorization.

13892389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179.

The product of its digits is 93312, while the sum is 43.

The square root of 13892389 is about 3727.2495221007. The cubic root of 13892389 is about 240.3951188236.

The spelling of 13892389 in words is "thirteen million, eight hundred ninety-two thousand, three hundred eighty-nine".

Divisors: 1 7 199 1393 9973 69811 1984627 13892389