Base | Representation |
---|---|
bin | 1111100101000… |
… | …11011000001010 |
3 | 100002220212120100 |
4 | 13302203120022 |
5 | 231424130433 |
6 | 20545110230 |
7 | 3144604020 |
oct | 762433012 |
9 | 302825510 |
10 | 130692618 |
11 | 67855331 |
12 | 37928376 |
13 | 210cbb14 |
14 | 13500710 |
15 | b718b13 |
hex | 7ca360a |
130692618 has 96 divisors (see below), whose sum is σ = 342351360. Its totient is φ = 35239680.
The previous prime is 130692607. The next prime is 130692619. The reversal of 130692618 is 816296031.
130692618 is a `hidden beast` number, since 1 + 30 + 6 + 9 + 2 + 618 = 666.
It is not an unprimeable number, because it can be changed into a prime (130692619) 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, 171358 + ... + 172118.
It is an arithmetic number, because the mean of its divisors is an integer number (3566160).
Almost surely, 2130692618 is an apocalyptic number.
130692618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 130692618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171175680).
130692618 is an abundant number, since it is smaller than the sum of its proper divisors (211658742).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130692618 is a wasteful number, since it uses less digits than its factorization.
130692618 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 852 (or 849 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 130692618 is about 11432.0872110039. The cubic root of 130692618 is about 507.4777658568.
The spelling of 130692618 in words is "one hundred thirty million, six hundred ninety-two thousand, six hundred eighteen".
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