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130531888 = 248158243
BaseRepresentation
bin1111100011111…
…00001000110000
3100002121201002101
413301330020300
5231404010023
620541430144
73143334304
oct761741060
9302551071
10130531888
11677555a3
123786b354
1321073906
141349bd04
15b6d61ad
hex7c7c230

130531888 has 10 divisors (see below), whose sum is σ = 252905564. Its totient is φ = 65265936.

The previous prime is 130531847. The next prime is 130531889. The reversal of 130531888 is 888135031.

It is not an unprimeable number, because it can be changed into a prime (130531889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4079106 + ... + 4079137.

Almost surely, 2130531888 is an apocalyptic number.

It is an amenable number.

130531888 is a deficient number, since it is larger than the sum of its proper divisors (122373676).

130531888 is an equidigital number, since it uses as much as digits as its factorization.

130531888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8158251 (or 8158245 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 130531888 is about 11425.0552733893. The cubic root of 130531888 is about 507.2696430026.

It can be divided in two parts, 13053 and 1888, that added together give a palindrome (14941).

The spelling of 130531888 in words is "one hundred thirty million, five hundred thirty-one thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 8158243 16316486 32632972 65265944 130531888