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2830191208 = 2313197120173
BaseRepresentation
bin1010100010110001…
…0100101001101000
321022020111121110121
42220230110221220
521244012104313
61144500453024
7130064141215
oct25054245150
97266447417
102830191208
1112226295a9
1266b9aa174
1336146b270
141cbc42b0c
1511870028d
hexa8b14a68

2830191208 has 64 divisors (see below), whose sum is σ = 6100617600. Its totient is φ = 1220002560.

The previous prime is 2830191191. The next prime is 2830191211. The reversal of 2830191208 is 8021910382.

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 15 ways as a sum of consecutive naturals, for example, 130210 + ... + 150382.

It is an arithmetic number, because the mean of its divisors is an integer number (95322150).

Almost surely, 22830191208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2830191208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3050308800).

2830191208 is an abundant number, since it is smaller than the sum of its proper divisors (3270426392).

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

2830191208 is a wasteful number, since it uses less digits than its factorization.

2830191208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20282 (or 20278 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2830191208 is about 53199.5414265950. The cubic root of 2830191208 is about 1414.5075151446.

The spelling of 2830191208 in words is "two billion, eight hundred thirty million, one hundred ninety-one thousand, two hundred eight".

Divisors: 1 2 4 8 13 19 26 38 52 71 76 104 142 152 247 284 494 568 923 988 1349 1846 1976 2698 3692 5396 7384 10792 17537 20173 35074 40346 70148 80692 140296 161384 262249 383287 524498 766574 1048996 1432283 1533148 2097992 2864566 3066296 4982731 5729132 9965462 11458264 18619679 19930924 27213377 37239358 39861848 54426754 74478716 108853508 148957432 217707016 353773901 707547802 1415095604 2830191208