Base | Representation |
---|---|
bin | 1111100010100… |
… | …00000110101011 |
3 | 100002021112200111 |
4 | 13301100012223 |
5 | 231332222111 |
6 | 20533515151 |
7 | 3141653422 |
oct | 761200653 |
9 | 302245614 |
10 | 130351531 |
11 | 67642042 |
12 | 377a2ab7 |
13 | 2100c7ab |
14 | 134522b9 |
15 | b69ca21 |
hex | 7c501ab |
130351531 has 4 divisors (see below), whose sum is σ = 130383864. Its totient is φ = 130319200.
The previous prime is 130351523. The next prime is 130351537. The reversal of 130351531 is 135153031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135153031 = 13 ⋅10396387.
It is a cyclic number.
It is not a de Polignac number, because 130351531 - 23 = 130351523 is a prime.
It is a super-2 number, since 2×1303515312 = 33983043268087922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130351537) 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 3 ways as a sum of consecutive naturals, for example, 9085 + ... + 18526.
It is an arithmetic number, because the mean of its divisors is an integer number (32595966).
Almost surely, 2130351531 is an apocalyptic number.
130351531 is a deficient number, since it is larger than the sum of its proper divisors (32333).
130351531 is an equidigital number, since it uses as much as digits as its factorization.
130351531 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32332.
The product of its (nonzero) digits is 675, while the sum is 22.
The square root of 130351531 is about 11417.1594978786. The cubic root of 130351531 is about 507.0359024147.
The spelling of 130351531 in words is "one hundred thirty million, three hundred fifty-one thousand, five hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.261 sec. • engine limits •