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130552785 = 32511972719
BaseRepresentation
bin1111100100000…
…01001111010001
3100002122202202100
413302001033101
5231410142120
620542111013
73143452236
oct762011721
9302582670
10130552785
116776a270
123787b469
132108028c
14134a578d
15b6dc490
hex7c813d1

130552785 has 48 divisors (see below), whose sum is σ = 249500160. Its totient is φ = 62622720.

The previous prime is 130552769. The next prime is 130552787. The reversal of 130552785 is 587255031.

130552785 is a `hidden beast` number, since 1 + 30 + 552 + 78 + 5 = 666.

It is not a de Polignac number, because 130552785 - 24 = 130552769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130552787) 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 47 ways as a sum of consecutive naturals, for example, 46656 + ... + 49374.

It is an arithmetic number, because the mean of its divisors is an integer number (5197920).

Almost surely, 2130552785 is an apocalyptic number.

130552785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130552785 is a deficient number, since it is larger than the sum of its proper divisors (118947375).

130552785 is a wasteful number, since it uses less digits than its factorization.

130552785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 130552785 is about 11425.9697619064. The cubic root of 130552785 is about 507.2967113516.

The spelling of 130552785 in words is "one hundred thirty million, five hundred fifty-two thousand, seven hundred eighty-five".

Divisors: 1 3 5 9 11 15 33 45 55 97 99 165 291 485 495 873 1067 1455 2719 3201 4365 5335 8157 9603 13595 16005 24471 29909 40785 48015 89727 122355 149545 263743 269181 448635 791229 1318715 1345905 2373687 2901173 3956145 8703519 11868435 14505865 26110557 43517595 130552785