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6868904 = 237235333
BaseRepresentation
bin11010001100111110101000
3110220222100212
4122030332220
53224301104
6403120252
7112245650
oct32147650
913828325
106868904
113971789
122373088
131566653
14cab360
1590a36e
hex68cfa8

6868904 has 32 divisors (see below), whose sum is σ = 15361920. Its totient is φ = 2815296.

The previous prime is 6868903. The next prime is 6868913. The reversal of 6868904 is 4098686.

6868904 is digitally balanced in base 5 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×68689042 = 94363684322432, which contains 22 as substring.

6868904 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868903) 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, 1379 + ... + 3954.

It is an arithmetic number, because the mean of its divisors is an integer number (480060).

Almost surely, 26868904 is an apocalyptic number.

It is an amenable number.

6868904 is an abundant number, since it is smaller than the sum of its proper divisors (8493016).

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

6868904 is a wasteful number, since it uses less digits than its factorization.

6868904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5369 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 6868904 is about 2620.8594010362. The cubic root of 6868904 is about 190.0914056961.

The spelling of 6868904 in words is "six million, eight hundred sixty-eight thousand, nine hundred four".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 5333 10666 21332 37331 42664 74662 122659 149324 245318 298648 490636 858613 981272 1717226 3434452 6868904