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8130193460 = 225616664093
BaseRepresentation
bin1111001001001100…
…01110100000110100
3202222121101121202022
413210212032200310
5113122312142320
63422430132312
7405321334634
oct74446164064
922877347668
108130193460
1134a2311754
1216aa951098
139c74c897c
14571ab86c4
15328b66325
hex1e498e834

8130193460 has 24 divisors (see below), whose sum is σ = 17353300776. Its totient is φ = 3198764160.

The previous prime is 8130193453. The next prime is 8130193501. The reversal of 8130193460 is 643910318.

It can be written as a sum of positive squares in 4 ways, for example, as 381264676 + 7748928784 = 19526^2 + 88028^2 .

It is a super-2 number, since 2×81301934602 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8130193460.

It is a congruent number.

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, 3330827 + ... + 3333266.

It is an arithmetic number, because the mean of its divisors is an integer number (723054199).

Almost surely, 28130193460 is an apocalyptic number.

It is an amenable number.

8130193460 is an abundant number, since it is smaller than the sum of its proper divisors (9223107316).

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

8130193460 is a wasteful number, since it uses less digits than its factorization.

8130193460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664163 (or 6664161 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 8130193460 is about 90167.5854173771. The cubic root of 8130193460 is about 2010.7911260815.

The spelling of 8130193460 in words is "eight billion, one hundred thirty million, one hundred ninety-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 6664093 13328186 26656372 33320465 66640930 133281860 406509673 813019346 1626038692 2032548365 4065096730 8130193460