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830609808 = 24372472053
BaseRepresentation
bin110001100000100…
…001100110010000
32010212221100110020
4301200201212100
53200114003213
6214230503440
726404031640
oct6140414620
92125840406
10830609808
11396948496
121b2204b80
1310310c5c2
147c456520
154cdc1923
hex31821990

830609808 has 40 divisors (see below), whose sum is σ = 2452277568. Its totient is φ = 237316992.

The previous prime is 830609797. The next prime is 830609821. The reversal of 830609808 is 808906038.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 830609808.

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, 1235691 + ... + 1236362.

Almost surely, 2830609808 is an apocalyptic number.

It is an amenable number.

830609808 is an abundant number, since it is smaller than the sum of its proper divisors (1621667760).

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

830609808 is a wasteful number, since it uses less digits than its factorization.

830609808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472071 (or 2472065 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 830609808 is about 28820.3020109089. The cubic root of 830609808 is about 940.0097358279.

The spelling of 830609808 in words is "eight hundred thirty million, six hundred nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 2472053 4944106 7416159 9888212 14832318 17304371 19776424 29664636 34608742 39552848 51913113 59329272 69217484 103826226 118658544 138434968 207652452 276869936 415304904 830609808