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130666032 = 24327129629
BaseRepresentation
bin1111100100111…
…00111000110000
3100002212112002200
413302130320300
5231422303112
620544343200
73144433350
oct762347060
9302775080
10130666032
1167837362
1237914b00
13210bc9a3
14134d4b60
15b710cdc
hex7c9ce30

130666032 has 60 divisors (see below), whose sum is σ = 417927120. Its totient is φ = 37332864.

The previous prime is 130666009. The next prime is 130666033. The reversal of 130666032 is 230666031.

It is a super-2 number, since 2×1306660322 = 34147223837250048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130665987 and 130666005.

It is not an unprimeable number, because it can be changed into a prime (130666033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63807 + ... + 65822.

It is an arithmetic number, because the mean of its divisors is an integer number (6965452).

Almost surely, 2130666032 is an apocalyptic number.

130666032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130666032 is an abundant number, since it is smaller than the sum of its proper divisors (287261088).

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

130666032 is a wasteful number, since it uses less digits than its factorization.

130666032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129650 (or 129641 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 130666032 is about 11430.9243720707. The cubic root of 130666032 is about 507.4433524904.

Subtracting 130666032 from its reverse (230666031), we obtain a palindrome (99999999).

The spelling of 130666032 in words is "one hundred thirty million, six hundred sixty-six thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 129629 259258 388887 518516 777774 907403 1037032 1166661 1555548 1814806 2074064 2333322 2722209 3111096 3629612 4666644 5444418 6222192 7259224 8166627 9333288 10888836 14518448 16333254 18666576 21777672 32666508 43555344 65333016 130666032