Base | Representation |
---|---|
bin | 11100001100011111… |
… | …001101110100001111 |
3 | 2220010212101210210021 |
4 | 130030133031310033 |
5 | 444000203440334 |
6 | 21524030523011 |
7 | 2121140066044 |
oct | 341437156417 |
9 | 86125353707 |
10 | 30274280719 |
11 | 11926051211 |
12 | 5a4a966467 |
13 | 2b16159497 |
14 | 1672a451cb |
15 | bc2c573b4 |
hex | 70c7cdd0f |
30274280719 has 2 divisors, whose sum is σ = 30274280720. Its totient is φ = 30274280718.
The previous prime is 30274280717. The next prime is 30274280741. The reversal of 30274280719 is 91708247203.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30274280719 - 21 = 30274280717 is a prime.
It is a super-4 number, since 4×302742807194 (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
Together with 30274280717, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30274280717) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15137140359 + 15137140360.
It is an arithmetic number, because the mean of its divisors is an integer number (15137140360).
Almost surely, 230274280719 is an apocalyptic number.
30274280719 is a deficient number, since it is larger than the sum of its proper divisors (1).
30274280719 is an equidigital number, since it uses as much as digits as its factorization.
30274280719 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 169344, while the sum is 43.
The spelling of 30274280719 in words is "thirty billion, two hundred seventy-four million, two hundred eighty thousand, seven hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •