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130383720 = 23325362177
BaseRepresentation
bin1111100010101…
…11111101101000
3100002100011211200
413301113331220
5231334234340
620534324200
73142146315
oct761277550
9302304750
10130383720
1167664245
12377b9660
132102133c
141345dd0c
15b6a7330
hex7c57f68

130383720 has 48 divisors (see below), whose sum is σ = 423748260. Its totient is φ = 34768896.

The previous prime is 130383713. The next prime is 130383769. The reversal of 130383720 is 27383031.

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 12996 = 11418^2 + 114^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180729 + ... + 181448.

Almost surely, 2130383720 is an apocalyptic number.

130383720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130383720 is an abundant number, since it is smaller than the sum of its proper divisors (293364540).

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

130383720 is a wasteful number, since it uses less digits than its factorization.

130383720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362194 (or 362187 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 130383720 is about 11418.5690872368. The cubic root of 130383720 is about 507.0776347859.

The spelling of 130383720 in words is "one hundred thirty million, three hundred eighty-three thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 362177 724354 1086531 1448708 1810885 2173062 2897416 3259593 3621770 4346124 5432655 6519186 7243540 8692248 10865310 13038372 14487080 16297965 21730620 26076744 32595930 43461240 65191860 130383720