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130291312920 = 23351085760941
BaseRepresentation
bin111100101010111110…
…1111010100100011000
3110110022020002110211020
41321111331322210120
54113314034003140
6135504403002440
712261511613106
oct1712575724430
9413266073736
10130291312920
115029005a90a
1221302369420
13c395350542
14644005ac76
1535c87086d0
hex1e55f7a918

130291312920 has 32 divisors (see below), whose sum is σ = 390873939120. Its totient is φ = 34744350080.

The previous prime is 130291312889. The next prime is 130291312933. The reversal of 130291312920 is 29213192031.

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, 542880351 + ... + 542880590.

Almost surely, 2130291312920 is an apocalyptic number.

130291312920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130291312920 is an abundant number, since it is smaller than the sum of its proper divisors (260582626200).

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

130291312920 is a wasteful number, since it uses less digits than its factorization.

130291312920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085760955 (or 1085760951 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

It can be divided in two parts, 130291 and 312920, that added together give a triangular number (443211 = T941).

The spelling of 130291312920 in words is "one hundred thirty billion, two hundred ninety-one million, three hundred twelve thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1085760941 2171521882 3257282823 4343043764 5428804705 6514565646 8686087528 10857609410 13029131292 16286414115 21715218820 26058262584 32572828230 43430437640 65145656460 130291312920