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30692825 = 521227713
BaseRepresentation
bin111010100010…
…1010111011001
32010202100122022
41311011113121
530324132300
63013504225
7521612312
oct165052731
963670568
1030692825
1116363a79
12a342075
136488447
14410d609
152a64285
hex1d455d9

30692825 has 6 divisors (see below), whose sum is σ = 38059134. Its totient is φ = 24554240.

The previous prime is 30692801. The next prime is 30692839. The reversal of 30692825 is 52829603.

It can be written as a sum of positive squares in 3 ways, for example, as 10863616 + 19829209 = 3296^2 + 4453^2 .

It is not a de Polignac number, because 30692825 - 218 = 30430681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613832 + ... + 613881.

It is an arithmetic number, because the mean of its divisors is an integer number (6343189).

Almost surely, 230692825 is an apocalyptic number.

It is an amenable number.

30692825 is a deficient number, since it is larger than the sum of its proper divisors (7366309).

30692825 is a wasteful number, since it uses less digits than its factorization.

30692825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227723 (or 1227718 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 30692825 is about 5540.1105584636. The cubic root of 30692825 is about 313.0970346325.

The spelling of 30692825 in words is "thirty million, six hundred ninety-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 1227713 6138565 30692825