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30635930 = 2513235661
BaseRepresentation
bin111010011011…
…1011110011010
32010122110121002
41310313132122
530320322210
63012345002
7521254403
oct164673632
963573532
1030635930
1116325256
12a315162
136468590
1440d69aa
152a524a5
hex1d3779a

30635930 has 16 divisors (see below), whose sum is σ = 59386824. Its totient is φ = 11311680.

The previous prime is 30635929. The next prime is 30635933. The reversal of 30635930 is 3953603.

It can be written as a sum of positive squares in 4 ways, for example, as 18601969 + 12033961 = 4313^2 + 3469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30635893 and 30635902.

It is not an unprimeable number, because it can be changed into a prime (30635933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117701 + ... + 117960.

Almost surely, 230635930 is an apocalyptic number.

30635930 is a deficient number, since it is larger than the sum of its proper divisors (28750894).

30635930 is a wasteful number, since it uses less digits than its factorization.

30635930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235681.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 30635930 is about 5534.9733513360. The cubic root of 30635930 is about 312.9034532972.

The spelling of 30635930 in words is "thirty million, six hundred thirty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 235661 471322 1178305 2356610 3063593 6127186 15317965 30635930