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30196730 = 257573989
BaseRepresentation
bin111001100110…
…0001111111010
32002211011010102
41303030033322
530212243410
62555115402
7514445054
oct163141772
962734112
1030196730
1116055283
12a142b62
1363436b5
1440208d4
1529b72a5
hex1ccc3fa

30196730 has 16 divisors (see below), whose sum is σ = 54439560. Its totient is φ = 12059712.

The previous prime is 30196711. The next prime is 30196741. The reversal of 30196730 is 3769103.

It can be written as a sum of positive squares in 4 ways, for example, as 25210441 + 4986289 = 5021^2 + 2233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30196693 and 30196702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5576 + ... + 9564.

Almost surely, 230196730 is an apocalyptic number.

30196730 is a deficient number, since it is larger than the sum of its proper divisors (24242830).

30196730 is a wasteful number, since it uses less digits than its factorization.

30196730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30196730 is about 5495.1551388473. The cubic root of 30196730 is about 311.4009778118.

The spelling of 30196730 in words is "thirty million, one hundred ninety-six thousand, seven hundred thirty".

Divisors: 1 2 5 10 757 1514 3785 3989 7570 7978 19945 39890 3019673 6039346 15098365 30196730