Base | Representation |
---|---|
bin | 1111100001110… |
… | …10010111000111 |
3 | 100002010000111222 |
4 | 13300322113013 |
5 | 231321344341 |
6 | 20531550555 |
7 | 3141132653 |
oct | 760722707 |
9 | 302100458 |
10 | 130262471 |
11 | 67591139 |
12 | 3775b45b |
13 | 20cab0b1 |
14 | 1342ba63 |
15 | b68144b |
hex | 7c3a5c7 |
130262471 has 2 divisors, whose sum is σ = 130262472. Its totient is φ = 130262470.
The previous prime is 130262411. The next prime is 130262497. The reversal of 130262471 is 174262031.
It is an a-pointer prime, because the next prime (130262497) can be obtained adding 130262471 to its sum of digits (26).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130262471 - 210 = 130261447 is a prime.
It is a super-3 number, since 3×1302624713 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 130262471.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130262401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65131235 + 65131236.
It is an arithmetic number, because the mean of its divisors is an integer number (65131236).
Almost surely, 2130262471 is an apocalyptic number.
130262471 is a deficient number, since it is larger than the sum of its proper divisors (1).
130262471 is an equidigital number, since it uses as much as digits as its factorization.
130262471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 130262471 is about 11413.2585618657. The cubic root of 130262471 is about 506.9204021590.
The spelling of 130262471 in words is "one hundred thirty million, two hundred sixty-two thousand, four hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •