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6868929 = 32289643
BaseRepresentation
bin11010001100111111000001
3110220222101210
4122030333001
53224301204
6403120333
7112246014
oct32147701
913828353
106868929
113971801
1223730a9
131566672
14cab37b
1590a389
hex68cfc1

6868929 has 4 divisors (see below), whose sum is σ = 9158576. Its totient is φ = 4579284.

The previous prime is 6868921. The next prime is 6868987. The reversal of 6868929 is 9298686.

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.

It is not a de Polignac number, because 6868929 - 23 = 6868921 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6868921) 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, 1144819 + ... + 1144824.

It is an arithmetic number, because the mean of its divisors is an integer number (2289644).

Almost surely, 26868929 is an apocalyptic number.

It is an amenable number.

6868929 is a deficient number, since it is larger than the sum of its proper divisors (2289647).

6868929 is a wasteful number, since it uses less digits than its factorization.

6868929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289646.

The product of its digits is 373248, while the sum is 48.

The square root of 6868929 is about 2620.8641704598. The cubic root of 6868929 is about 190.0916363141.

The spelling of 6868929 in words is "six million, eight hundred sixty-eight thousand, nine hundred twenty-nine".

Divisors: 1 3 2289643 6868929