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130385688 = 23327120047
BaseRepresentation
bin1111100010110…
…00011100011000
3100002100021112120
413301120130120
5231334320223
620534341240
73142155126
oct761303430
9302307476
10130385688
1167665774
12377ba820
13210221c4
1413460916
15b6a7be3
hex7c58718

130385688 has 32 divisors (see below), whose sum is σ = 327183360. Its totient is φ = 43299360.

The previous prime is 130385687. The next prime is 130385707. The reversal of 130385688 is 886583031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130385681) 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 in 7 ways as a sum of consecutive naturals, for example, 3520 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (10224480).

Almost surely, 2130385688 is an apocalyptic number.

It is an amenable number.

130385688 is an abundant number, since it is smaller than the sum of its proper divisors (196797672).

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

130385688 is a wasteful number, since it uses less digits than its factorization.

130385688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20327 (or 20323 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 130385688 is about 11418.6552623328. The cubic root of 130385688 is about 507.0801860343.

The spelling of 130385688 in words is "one hundred thirty million, three hundred eighty-five thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 271 542 813 1084 1626 2168 3252 6504 20047 40094 60141 80188 120282 160376 240564 481128 5432737 10865474 16298211 21730948 32596422 43461896 65192844 130385688