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130266780 = 22357437213
BaseRepresentation
bin1111100001110…
…11011010011100
3100002010020102120
413300323122130
5231322014110
620532022540
73141151350
oct760733234
9302106376
10130266780
11675943a6
1237761a50
1320cb0047
141342d460
15b682870
hex7c3b69c

130266780 has 96 divisors (see below), whose sum is σ = 426607104. Its totient is φ = 29078784.

The previous prime is 130266761. The next prime is 130266797. The reversal of 130266780 is 87662031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14454 + ... + 21666.

It is an arithmetic number, because the mean of its divisors is an integer number (4443824).

Almost surely, 2130266780 is an apocalyptic number.

130266780 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 130266780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213303552).

130266780 is an abundant number, since it is smaller than the sum of its proper divisors (296340324).

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

130266780 is a wasteful number, since it uses less digits than its factorization.

130266780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275 (or 7273 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 130266780 is about 11413.4473319852. The cubic root of 130266780 is about 506.9259916326.

The spelling of 130266780 in words is "one hundred thirty million, two hundred sixty-six thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 43 60 70 84 86 105 129 140 172 210 215 258 301 420 430 516 602 645 860 903 1204 1290 1505 1806 2580 3010 3612 4515 6020 7213 9030 14426 18060 21639 28852 36065 43278 50491 72130 86556 100982 108195 144260 151473 201964 216390 252455 302946 310159 432780 504910 605892 620318 757365 930477 1009820 1240636 1514730 1550795 1860954 2171113 3029460 3101590 3721908 4342226 4652385 6203180 6513339 8684452 9304770 10855565 13026678 18609540 21711130 26053356 32566695 43422260 65133390 130266780