Search a number
-
+
13892861 = 79175859
BaseRepresentation
bin110100111111…
…110011111101
3222010211102102
4310333303331
512024032421
61213434445
7226041653
oct64776375
928124372
1013892861
117929a04
12479ba25
132b55738
141bb8dd3
15134660b
hexd3fcfd

13892861 has 4 divisors (see below), whose sum is σ = 14068800. Its totient is φ = 13716924.

The previous prime is 13892843. The next prime is 13892863. The reversal of 13892861 is 16829831.

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: 16829831 = 29580339.

It is a cyclic number.

It is not a de Polignac number, because 13892861 - 214 = 13876477 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 (13892863) 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, 87851 + ... + 88008.

It is an arithmetic number, because the mean of its divisors is an integer number (3517200).

Almost surely, 213892861 is an apocalyptic number.

It is an amenable number.

13892861 is a deficient number, since it is larger than the sum of its proper divisors (175939).

13892861 is an equidigital number, since it uses as much as digits as its factorization.

13892861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175938.

The product of its digits is 20736, while the sum is 38.

The square root of 13892861 is about 3727.3128390303. The cubic root of 13892861 is about 240.3978413026.

The spelling of 13892861 in words is "thirteen million, eight hundred ninety-two thousand, eight hundred sixty-one".

Divisors: 1 79 175859 13892861