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130738860 = 223757261
BaseRepresentation
bin1111100101011…
…10101010101100
3100010000020000000
413302232222230
5231432120420
620550104300
73145155600
oct762565254
9303006000
10130738860
116788704a
123794b090
1321116b95
1413513500
15b727690
hex7caeaac

130738860 has 288 divisors, whose sum is σ = 486843840. Its totient is φ = 29393280.

The previous prime is 130738859. The next prime is 130738919. The reversal of 130738860 is 68837031.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2143230 + ... + 2143290.

It is an arithmetic number, because the mean of its divisors is an integer number (1690430).

Almost surely, 2130738860 is an apocalyptic number.

130738860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130738860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243421920).

130738860 is an abundant number, since it is smaller than the sum of its proper divisors (356104980).

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

130738860 is an equidigital number, since it uses as much as digits as its factorization.

130738860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 130738860 is about 11434.1094974642. The cubic root of 130738860 is about 507.5376111642.

The spelling of 130738860 in words is "one hundred thirty million, seven hundred thirty-eight thousand, eight hundred sixty".