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30604825 = 521224193
BaseRepresentation
bin111010010111…
…1111000011001
32010120212221001
41310233320121
530313323300
63011545001
7521064616
oct164577031
963525831
1030604825
1116303949
12a2bb161
136457384
1440c950d
152a4816a
hex1d2fe19

30604825 has 6 divisors (see below), whose sum is σ = 37950014. Its totient is φ = 24483840.

The previous prime is 30604817. The next prime is 30604829. The reversal of 30604825 is 52840603.

It can be written as a sum of positive squares in 3 ways, for example, as 1054729 + 29550096 = 1027^2 + 5436^2 .

It is not a de Polignac number, because 30604825 - 23 = 30604817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30604793 and 30604802.

It is not an unprimeable number, because it can be changed into a prime (30604829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612072 + ... + 612121.

Almost surely, 230604825 is an apocalyptic number.

It is an amenable number.

30604825 is a deficient number, since it is larger than the sum of its proper divisors (7345189).

30604825 is a wasteful number, since it uses less digits than its factorization.

30604825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224203 (or 1224198 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 30604825 is about 5532.1627777931. The cubic root of 30604825 is about 312.7975193200.

The spelling of 30604825 in words is "thirty million, six hundred four thousand, eight hundred twenty-five".

Divisors: 1 5 25 1224193 6120965 30604825