Base | Representation |
---|---|
bin | 1111100011000… |
… | …01001000011000 |
3 | 100002102002100111 |
4 | 13301201020120 |
5 | 231341440042 |
6 | 20535214104 |
7 | 3142363642 |
oct | 761411030 |
9 | 302362314 |
10 | 130421272 |
11 | 6768a483 |
12 | 37817334 |
13 | 21035467 |
14 | 1346d892 |
15 | b6b3517 |
hex | 7c61218 |
130421272 has 8 divisors (see below), whose sum is σ = 244539900. Its totient is φ = 65210632.
The previous prime is 130421243. The next prime is 130421273. The reversal of 130421272 is 272124031.
It is a tau number, because it is divible by the number of its divisors (8).
It is a super-3 number, since 3×1304212723 (a number of 25 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130421273) 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 as a sum of consecutive naturals, namely, 8151322 + ... + 8151337.
Almost surely, 2130421272 is an apocalyptic number.
It is an amenable number.
130421272 is a deficient number, since it is larger than the sum of its proper divisors (114118628).
130421272 is a wasteful number, since it uses less digits than its factorization.
130421272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16302665 (or 16302661 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 22.
The square root of 130421272 is about 11420.2133079904. The cubic root of 130421272 is about 507.1263114958.
The spelling of 130421272 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •