Search a number
-
+
13969045 = 52793809
BaseRepresentation
bin110101010010…
…011010010101
3222021200221001
4311102122111
512034002140
61215223301
7226510036
oct65223225
928250831
1013969045
117981172
124817b31
132b8130c
141bd8a8d
15135de9a
hexd52695

13969045 has 4 divisors (see below), whose sum is σ = 16762860. Its totient is φ = 11175232.

The previous prime is 13969001. The next prime is 13969057. The reversal of 13969045 is 54096931.

13969045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2692881 + 11276164 = 1641^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 13969045 - 29 = 13968533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13968995 and 13969013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396900 + ... + 1396909.

It is an arithmetic number, because the mean of its divisors is an integer number (4190715).

Almost surely, 213969045 is an apocalyptic number.

It is an amenable number.

13969045 is a deficient number, since it is larger than the sum of its proper divisors (2793815).

13969045 is an equidigital number, since it uses as much as digits as its factorization.

13969045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793814.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 13969045 is about 3737.5185618268. The cubic root of 13969045 is about 240.8364621132.

The spelling of 13969045 in words is "thirteen million, nine hundred sixty-nine thousand, forty-five".

Divisors: 1 5 2793809 13969045