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7680004 = 221920001
BaseRepresentation
bin11101010011000000000100
3112110011222121
4131103000010
53431230004
6432335324
7122164453
oct35230004
915404877
107680004
114376112
1226a4544
13178b8a7
14103cb9a
15a1a854
hex753004

7680004 has 6 divisors (see below), whose sum is σ = 13440014. Its totient is φ = 3840000.

The previous prime is 7679993. The next prime is 7680017. The reversal of 7680004 is 4000867.

It can be written as a sum of positive squares in only one way, i.e., 6240004 + 1440000 = 2498^2 + 1200^2 .

It is a super-2 number, since 2×76800042 = 117964922880032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959997 + ... + 960004.

Almost surely, 27680004 is an apocalyptic number.

It is an amenable number.

7680004 is a deficient number, since it is larger than the sum of its proper divisors (5760010).

7680004 is a wasteful number, since it uses less digits than its factorization.

7680004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920005 (or 1920003 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 7680004 is about 2771.2820137979. The cubic root of 7680004 is about 197.2970001994.

The spelling of 7680004 in words is "seven million, six hundred eighty thousand, four".

Divisors: 1 2 4 1920001 3840002 7680004