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30353825 = 523473499
BaseRepresentation
bin111001111001…
…0100110100001
32010010010121202
41303302212201
530232310300
63002330545
7516001055
oct163624641
963103552
1030353825
1116152307
12a1b9a55
13639a058
144061c65
1529e8ad5
hex1cf29a1

30353825 has 12 divisors (see below), whose sum is σ = 37758000. Its totient is φ = 24206160.

The previous prime is 30353821. The next prime is 30353831. The reversal of 30353825 is 52835303.

It is not a de Polignac number, because 30353825 - 22 = 30353821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30353821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6926 + ... + 10424.

It is an arithmetic number, because the mean of its divisors is an integer number (3146500).

Almost surely, 230353825 is an apocalyptic number.

It is an amenable number.

30353825 is a deficient number, since it is larger than the sum of its proper divisors (7404175).

30353825 is a wasteful number, since it uses less digits than its factorization.

30353825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 3851 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 30353825 is about 5509.4305513365. The cubic root of 30353825 is about 311.9400532702.

The spelling of 30353825 in words is "thirty million, three hundred fifty-three thousand, eight hundred twenty-five".

Divisors: 1 5 25 347 1735 3499 8675 17495 87475 1214153 6070765 30353825