Base | Representation |
---|---|
bin | 11100001011000111… |
… | …011101000010010010 |
3 | 2220002021002222000212 |
4 | 130023013131002102 |
5 | 443423311240021 |
6 | 21521445444122 |
7 | 2120440406144 |
oct | 341307350222 |
9 | 86067088025 |
10 | 30251274386 |
11 | 11914068213 |
12 | 5a43110642 |
13 | 2b11462878 |
14 | 166d976c94 |
15 | bc0c1085b |
hex | 70b1dd092 |
30251274386 has 16 divisors (see below), whose sum is σ = 46923136704. Its totient is φ = 14618748144.
The previous prime is 30251274349. The next prime is 30251274413. The reversal of 30251274386 is 68347215203.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122670 + ... + 2136873.
It is an arithmetic number, because the mean of its divisors is an integer number (2932696044).
Almost surely, 230251274386 is an apocalyptic number.
30251274386 is a deficient number, since it is larger than the sum of its proper divisors (16671862318).
30251274386 is a wasteful number, since it uses less digits than its factorization.
30251274386 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4259665.
The product of its (nonzero) digits is 241920, while the sum is 41.
Adding to 30251274386 its reverse (68347215203), we get a palindrome (98598489589).
The spelling of 30251274386 in words is "thirty billion, two hundred fifty-one million, two hundred seventy-four thousand, three hundred eighty-six".
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