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7030428 = 2233118899
BaseRepresentation
bin11010110100011010011100
3111020011221020
4122310122130
53244433203
6410404140
7113520606
oct32643234
914204836
107030428
113a72079
122430650
1315c2022
14d10176
1593d153
hex6b469c

7030428 has 24 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 2267760.

The previous prime is 7030427. The next prime is 7030451. The reversal of 7030428 is 8240307.

It is a junction number, because it is equal to n+sod(n) for n = 7030398 and 7030407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7030421) 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, 9078 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 27030428 is an apocalyptic number.

It is an amenable number.

7030428 is an abundant number, since it is smaller than the sum of its proper divisors (9903972).

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

7030428 is a wasteful number, since it uses less digits than its factorization.

7030428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937 (or 18935 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7030428 is about 2651.4954271128. The cubic root of 7030428 is about 191.5698922507.

The spelling of 7030428 in words is "seven million, thirty thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 18899 37798 56697 75596 113394 226788 585869 1171738 1757607 2343476 3515214 7030428