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7814028 = 223651169
BaseRepresentation
bin11101110011101110001100
3112200222211110
4131303232030
54000022103
6435252020
7123263265
oct35635614
915628743
107814028
114457882
12274a010
1318078b1
14107596c
15a45403
hex773b8c

7814028 has 12 divisors (see below), whose sum is σ = 18232760. Its totient is φ = 2604672.

The previous prime is 7814011. The next prime is 7814087. The reversal of 7814028 is 8204187.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78140282 = 122118067169568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7813986 and 7814004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325573 + ... + 325596.

Almost surely, 27814028 is an apocalyptic number.

It is an amenable number.

7814028 is an abundant number, since it is smaller than the sum of its proper divisors (10418732).

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

7814028 is a wasteful number, since it uses less digits than its factorization.

7814028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651176 (or 651174 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 7814028 is about 2795.3582954605. The cubic root of 7814028 is about 198.4380669130.

The spelling of 7814028 in words is "seven million, eight hundred fourteen thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 651169 1302338 1953507 2604676 3907014 7814028