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30083850 = 2325266853
BaseRepresentation
bin111001011000…
…0101100001010
32002121102021200
41302300230022
530200140400
62552445030
7513465006
oct162605412
962542250
1030083850
1115a88495
12a0a9776
1363041c4
143dd1706
152993b00
hex1cb0b0a

30083850 has 36 divisors (see below), whose sum is σ = 80826486. Its totient is φ = 8022240.

The previous prime is 30083831. The next prime is 30083899. The reversal of 30083850 is 5838003.

It can be written as a sum of positive squares in 3 ways, for example, as 28804689 + 1279161 = 5367^2 + 1131^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32977 + ... + 33876.

Almost surely, 230083850 is an apocalyptic number.

30083850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30083850 is an abundant number, since it is smaller than the sum of its proper divisors (50742636).

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

30083850 is a wasteful number, since it uses less digits than its factorization.

30083850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66871 (or 66863 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30083850 is about 5484.8746567264. The cubic root of 30083850 is about 311.0124717999.

The spelling of 30083850 in words is "thirty million, eighty-three thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 66853 133706 200559 334265 401118 601677 668530 1002795 1203354 1671325 2005590 3008385 3342650 5013975 6016770 10027950 15041925 30083850