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130878660 = 223511198301
BaseRepresentation
bin1111100110100…
…00110011000100
3100010021022202210
413303100303010
5232001104120
620553103420
73146310303
oct763206304
9303238683
10130878660
1167972090
12379b7b70
13211656c3
141354c43a
15b753ce0
hex7cd0cc4

130878660 has 48 divisors (see below), whose sum is σ = 399776832. Its totient is φ = 31728000.

The previous prime is 130878659. The next prime is 130878667. The reversal of 130878660 is 66878031.

It is not an unprimeable number, because it can be changed into a prime (130878667) by changing a digit.

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, 98491 + ... + 99810.

It is an arithmetic number, because the mean of its divisors is an integer number (8328684).

Almost surely, 2130878660 is an apocalyptic number.

130878660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130878660 is an abundant number, since it is smaller than the sum of its proper divisors (268898172).

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

130878660 is a wasteful number, since it uses less digits than its factorization.

130878660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198324 (or 198322 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 130878660 is about 11440.2211517086. The cubic root of 130878660 is about 507.7184512567.

The spelling of 130878660 in words is "one hundred thirty million, eight hundred seventy-eight thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 198301 396602 594903 793204 991505 1189806 1983010 2181311 2379612 2974515 3966020 4362622 5949030 6543933 8725244 10906555 11898060 13087866 21813110 26175732 32719665 43626220 65439330 130878660