Base | Representation |
---|---|
bin | 1111100100100… |
… | …01101011111011 |
3 | 100002210012011112 |
4 | 13302101223323 |
5 | 231414321110 |
6 | 20543350535 |
7 | 3144152531 |
oct | 762215373 |
9 | 302705145 |
10 | 130620155 |
11 | 67805946 |
12 | 378b244b |
13 | 210a4b43 |
14 | 134c2151 |
15 | b702405 |
hex | 7c91afb |
130620155 has 16 divisors (see below), whose sum is σ = 165331200. Its totient is φ = 98794080.
The previous prime is 130620131. The next prime is 130620157. The reversal of 130620155 is 551026031.
It is not a de Polignac number, because 130620155 - 28 = 130619899 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130620155.
It is not an unprimeable number, because it can be changed into a prime (130620157) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58856 + ... + 61034.
It is an arithmetic number, because the mean of its divisors is an integer number (10333200).
Almost surely, 2130620155 is an apocalyptic number.
130620155 is a deficient number, since it is larger than the sum of its proper divisors (34711045).
130620155 is a wasteful number, since it uses less digits than its factorization.
130620155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2834.
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 130620155 is about 11428.9174902963. The cubic root of 130620155 is about 507.3839575495.
Adding to 130620155 its reverse (551026031), we get a palindrome (681646186).
The spelling of 130620155 in words is "one hundred thirty million, six hundred twenty thousand, one hundred fifty-five".
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