Base | Representation |
---|---|
bin | 1111100001111… |
… | …00101101100101 |
3 | 100002010111201122 |
4 | 13300330231211 |
5 | 231322201401 |
6 | 20532103325 |
7 | 3141203021 |
oct | 760745545 |
9 | 302114648 |
10 | 130272101 |
11 | 675983a3 |
12 | 37764b45 |
13 | 20cb25ab |
14 | 13431381 |
15 | b68421b |
hex | 7c3cb65 |
130272101 has 4 divisors (see below), whose sum is σ = 130683372. Its totient is φ = 129860832.
The previous prime is 130272091. The next prime is 130272119. The reversal of 130272101 is 101272031.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 66031876 + 64240225 = 8126^2 + 8015^2 .
It is a cyclic number.
It is not a de Polignac number, because 130272101 - 226 = 63163237 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 130272101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130272601) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205160 + ... + 205793.
It is an arithmetic number, because the mean of its divisors is an integer number (32670843).
Almost surely, 2130272101 is an apocalyptic number.
It is an amenable number.
130272101 is a deficient number, since it is larger than the sum of its proper divisors (411271).
130272101 is an equidigital number, since it uses as much as digits as its factorization.
130272101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 411270.
The product of its (nonzero) digits is 84, while the sum is 17.
The square root of 130272101 is about 11413.6804318327. The cubic root of 130272101 is about 506.9328936647.
The spelling of 130272101 in words is "one hundred thirty million, two hundred seventy-two thousand, one hundred one".
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