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7668904 = 2317231107
BaseRepresentation
bin11101010000010010101000
3112102121202111
4131100102220
53430401104
6432212104
7122120215
oct35202250
915377674
107668904
114368841
12269a034
131786819
141038b0c
15a17404
hex7504a8

7668904 has 48 divisors (see below), whose sum is σ = 15914880. Its totient is φ = 3459840.

The previous prime is 7668901. The next prime is 7668911. The reversal of 7668904 is 4098667.

It is a super-2 number, since 2×76689042 = 117624177122432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7668901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71619 + ... + 71725.

It is an arithmetic number, because the mean of its divisors is an integer number (331560).

Almost surely, 27668904 is an apocalyptic number.

It is an amenable number.

7668904 is an abundant number, since it is smaller than the sum of its proper divisors (8245976).

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

7668904 is a wasteful number, since it uses less digits than its factorization.

7668904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 7668904 is about 2769.2786064244. The cubic root of 7668904 is about 197.2019024787.

The spelling of 7668904 in words is "seven million, six hundred sixty-eight thousand, nine hundred four".

Divisors: 1 2 4 8 17 31 34 62 68 107 124 136 214 248 289 428 527 578 856 1054 1156 1819 2108 2312 3317 3638 4216 6634 7276 8959 13268 14552 17918 26536 30923 35836 56389 61846 71672 112778 123692 225556 247384 451112 958613 1917226 3834452 7668904