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830809012 = 221118882023
BaseRepresentation
bin110001100001010…
…010001110110100
32010220022110201011
4301201102032310
53200141342022
6214235042004
726405521465
oct6141221664
92126273634
10830809012
11396a74120
121b22a0304
1310317c187
147c4a8d6c
154ce10977
hex318523b4

830809012 has 12 divisors (see below), whose sum is σ = 1586090016. Its totient is φ = 377640440.

The previous prime is 830808971. The next prime is 830809027. The reversal of 830809012 is 210908038.

It is a super-2 number, since 2×8308090122 = 1380487228840832288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9440968 + ... + 9441055.

It is an arithmetic number, because the mean of its divisors is an integer number (132174168).

Almost surely, 2830809012 is an apocalyptic number.

It is an amenable number.

830809012 is a deficient number, since it is larger than the sum of its proper divisors (755281004).

830809012 is a wasteful number, since it uses less digits than its factorization.

830809012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18882038 (or 18882036 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 830809012 is about 28823.7577702839. The cubic root of 830809012 is about 940.0848768990.

The spelling of 830809012 in words is "eight hundred thirty million, eight hundred nine thousand, twelve".

Divisors: 1 2 4 11 22 44 18882023 37764046 75528092 207702253 415404506 830809012