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130545032 = 2316318129
BaseRepresentation
bin1111100011111…
…11010110001000
3100002122101010012
413301333112020
5231404420112
620542011052
73143420522
oct761772610
9302571105
10130545032
1167764462
1237876a88
13210798a7
14134a2a12
15b6da022
hex7c7f588

130545032 has 8 divisors (see below), whose sum is σ = 244771950. Its totient is φ = 65272512.

The previous prime is 130545031. The next prime is 130545043. The reversal of 130545032 is 230545031.

It can be written as a sum of positive squares in only one way, i.e., 115906756 + 14638276 = 10766^2 + 3826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 130544989 and 130545007.

It is not an unprimeable number, because it can be changed into a prime (130545031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8159057 + ... + 8159072.

Almost surely, 2130545032 is an apocalyptic number.

It is an amenable number.

130545032 is a deficient number, since it is larger than the sum of its proper divisors (114226918).

130545032 is a wasteful number, since it uses less digits than its factorization.

130545032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16318135 (or 16318131 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 130545032 is about 11425.6304858857. The cubic root of 130545032 is about 507.2866690553.

Subtracting 130545032 from its reverse (230545031), we obtain a palindrome (99999999).

The spelling of 130545032 in words is "one hundred thirty million, five hundred forty-five thousand, thirty-two".

Divisors: 1 2 4 8 16318129 32636258 65272516 130545032