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30039700 = 2252300397
BaseRepresentation
bin111001010010…
…1111010010100
32002112011201111
41302211322110
530142232300
62551504404
7513222205
oct162457224
962464644
1030039700
1115a582a9
12a088104
1362ba092
143dbd5ac
1529859ba
hex1ca5e94

30039700 has 18 divisors (see below), whose sum is σ = 65186366. Its totient is φ = 12015840.

The previous prime is 30039689. The next prime is 30039701. The reversal of 30039700 is 793003.

It can be written as a sum of positive squares in 3 ways, for example, as 467856 + 29571844 = 684^2 + 5438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30039701) 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 5 ways as a sum of consecutive naturals, for example, 150099 + ... + 150298.

Almost surely, 230039700 is an apocalyptic number.

It is an amenable number.

30039700 is an abundant number, since it is smaller than the sum of its proper divisors (35146666).

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

30039700 is a wasteful number, since it uses less digits than its factorization.

30039700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300411 (or 300404 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 22.

The square root of 30039700 is about 5480.8484744609. The cubic root of 30039700 is about 310.8602536579.

It can be divided in two parts, 300 and 39700, that added together give a square (40000 = 2002).

The spelling of 30039700 in words is "thirty million, thirty-nine thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 300397 600794 1201588 1501985 3003970 6007940 7509925 15019850 30039700