Base | Representation |
---|---|
bin | 1111100011110… |
… | …00000010001000 |
3 | 100002120212000212 |
4 | 13301320002020 |
5 | 231402440310 |
6 | 20541220252 |
7 | 3143234303 |
oct | 761700210 |
9 | 302525025 |
10 | 130515080 |
11 | 67743a03 |
12 | 37861688 |
13 | 21069077 |
14 | 13495b3a |
15 | b6d1205 |
hex | 7c78088 |
130515080 has 64 divisors (see below), whose sum is σ = 309096000. Its totient is φ = 49525504.
The previous prime is 130515079. The next prime is 130515083. The reversal of 130515080 is 80515031.
It is a super-2 number, since 2×1305150802 = 34068372214812800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (130515083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67487 + ... + 69393.
It is an arithmetic number, because the mean of its divisors is an integer number (4829625).
Almost surely, 2130515080 is an apocalyptic number.
130515080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 130515080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154548000).
130515080 is an abundant number, since it is smaller than the sum of its proper divisors (178580920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130515080 is a wasteful number, since it uses less digits than its factorization.
130515080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2006 (or 2002 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 23.
The square root of 130515080 is about 11424.3196733985. The cubic root of 130515080 is about 507.2478691299.
The spelling of 130515080 in words is "one hundred thirty million, five hundred fifteen thousand, eighty".
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