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6858404 = 227244943
BaseRepresentation
bin11010001010011010100100
3110220102221222
4122022122210
53223432104
6402555512
7112203230
oct32123244
913812858
106858404
113964903
122368b98
131561937
14ca75c0
159071be
hex68a6a4

6858404 has 12 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 2939304.

The previous prime is 6858403. The next prime is 6858407. The reversal of 6858404 is 4048586.

6858404 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6858403) 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, 122444 + ... + 122499.

It is an arithmetic number, because the mean of its divisors is an integer number (1143072).

Almost surely, 26858404 is an apocalyptic number.

It is an amenable number.

6858404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6858404 is a wasteful number, since it uses less digits than its factorization.

6858404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244954 (or 244952 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 6858404 is about 2618.8554752029. The cubic root of 6858404 is about 189.9944966088.

The spelling of 6858404 in words is "six million, eight hundred fifty-eight thousand, four hundred four".

Divisors: 1 2 4 7 14 28 244943 489886 979772 1714601 3429202 6858404