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30835825 = 521233433
BaseRepresentation
bin111010110100…
…0010001110001
32011000121210121
41311220101301
530343221300
63020530241
7523046236
oct165502161
964017717
1030835825
1116451459
12a3b0981
136508567
14414978d
152a9181a
hex1d68471

30835825 has 6 divisors (see below), whose sum is σ = 38236454. Its totient is φ = 24668640.

The previous prime is 30835811. The next prime is 30835867. The reversal of 30835825 is 52853803.

It can be written as a sum of positive squares in 3 ways, for example, as 16 + 30835809 = 4^2 + 5553^2 .

It is not a de Polignac number, because 30835825 - 217 = 30704753 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, 616692 + ... + 616741.

Almost surely, 230835825 is an apocalyptic number.

It is an amenable number.

30835825 is a deficient number, since it is larger than the sum of its proper divisors (7400629).

30835825 is a wasteful number, since it uses less digits than its factorization.

30835825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233443 (or 1233438 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 30835825 is about 5553.0014406625. The cubic root of 30835825 is about 313.5825283601.

The spelling of 30835825 in words is "thirty million, eight hundred thirty-five thousand, eight hundred twenty-five".

Divisors: 1 5 25 1233433 6167165 30835825