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130443512 = 23191316551
BaseRepresentation
bin1111100011001…
…10100011111000
3100002110012212012
413301212203320
5231343143022
620535505052
73142515533
oct761464370
9302405765
10130443512
11676a5161
1237828188
1321042614
1413477a1a
15b6b9de2
hex7c668f8

130443512 has 32 divisors (see below), whose sum is σ = 259459200. Its totient is φ = 61308000.

The previous prime is 130443487. The next prime is 130443517. The reversal of 130443512 is 215344031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130443517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16637 + ... + 23187.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2130443512 is an apocalyptic number.

It is an amenable number.

130443512 is a deficient number, since it is larger than the sum of its proper divisors (129015688).

130443512 is a wasteful number, since it uses less digits than its factorization.

130443512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707 (or 6703 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 130443512 is about 11421.1869785938. The cubic root of 130443512 is about 507.1551356489.

Adding to 130443512 its reverse (215344031), we get a palindrome (345787543).

The spelling of 130443512 in words is "one hundred thirty million, four hundred forty-three thousand, five hundred twelve".

Divisors: 1 2 4 8 19 38 76 131 152 262 524 1048 2489 4978 6551 9956 13102 19912 26204 52408 124469 248938 497876 858181 995752 1716362 3432724 6865448 16305439 32610878 65221756 130443512