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7214828 = 226726921
BaseRepresentation
bin11011100001011011101100
3111120112212212
4123201123230
53321333303
6414345552
7115216325
oct33413354
914515785
107214828
114088675
1224bb2b8
131657c3a
14d5b44c
15977ad8
hex6e16ec

7214828 has 12 divisors (see below), whose sum is σ = 12814872. Its totient is φ = 3553440.

The previous prime is 7214791. The next prime is 7214843. The reversal of 7214828 is 8284127.

It is a junction number, because it is equal to n+sod(n) for n = 7214794 and 7214803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13193 + ... + 13728.

It is an arithmetic number, because the mean of its divisors is an integer number (1067906).

Almost surely, 27214828 is an apocalyptic number.

It is an amenable number.

7214828 is a deficient number, since it is larger than the sum of its proper divisors (5600044).

7214828 is a wasteful number, since it uses less digits than its factorization.

7214828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26992 (or 26990 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 7214828 is about 2686.0431865478. The cubic root of 7214828 is about 193.2303441430.

The spelling of 7214828 in words is "seven million, two hundred fourteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 67 134 268 26921 53842 107684 1803707 3607414 7214828