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830775081 = 3919301333
BaseRepresentation
bin110001100001001…
…001111100101001
32010220020202011110
4301201021330221
53200134300311
6214234220533
726405320533
oct6141117451
92126222143
10830775081
11396a50684
121b2284749
131031698b6
147c49a853
154ce058a6
hex31849f29

830775081 has 8 divisors (see below), whose sum is σ = 1108909120. Its totient is φ = 553245552.

The previous prime is 830775079. The next prime is 830775089. The reversal of 830775081 is 180577038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 830775081 - 21 = 830775079 is a prime.

It is a super-2 number, since 2×8307750812 = 1380374470421113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830775089) 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, 147910 + ... + 153423.

It is an arithmetic number, because the mean of its divisors is an integer number (138613640).

Almost surely, 2830775081 is an apocalyptic number.

It is an amenable number.

830775081 is a deficient number, since it is larger than the sum of its proper divisors (278134039).

830775081 is a wasteful number, since it uses less digits than its factorization.

830775081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302255.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 830775081 is about 28823.1691699577. The cubic root of 830775081 is about 940.0720787493.

The spelling of 830775081 in words is "eight hundred thirty million, seven hundred seventy-five thousand, eighty-one".

Divisors: 1 3 919 2757 301333 903999 276925027 830775081