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830606663 = 8171101653
BaseRepresentation
bin110001100000100…
…000110101000111
32010212221012010202
4301200200311013
53200113403123
6214230441115
726404016525
oct6140406507
92125835122
10830606663
11396946097
121b220319b
1310310b043
147c455315
154cdc0a28
hex31820d47

830606663 has 4 divisors (see below), whose sum is σ = 830716488. Its totient is φ = 830496840.

The previous prime is 830606639. The next prime is 830606669. The reversal of 830606663 is 366606038.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366606038 = 2183303019.

It is a cyclic number.

It is not a de Polignac number, because 830606663 - 212 = 830602567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830606669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42656 + ... + 58997.

It is an arithmetic number, because the mean of its divisors is an integer number (207679122).

Almost surely, 2830606663 is an apocalyptic number.

830606663 is a deficient number, since it is larger than the sum of its proper divisors (109825).

830606663 is a wasteful number, since it uses less digits than its factorization.

830606663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109824.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 830606663 is about 28820.2474486254. The cubic root of 830606663 is about 940.0085494167.

The spelling of 830606663 in words is "eight hundred thirty million, six hundred six thousand, six hundred sixty-three".

Divisors: 1 8171 101653 830606663