Base | Representation |
---|---|
bin | 11100000010000110… |
… | …101001011111000011 |
3 | 2212200201120220021010 |
4 | 130002012221133003 |
5 | 443121104141131 |
6 | 21454444532003 |
7 | 2113623234066 |
oct | 340206513703 |
9 | 85621526233 |
10 | 30100068291 |
11 | 118467818a7 |
12 | 5a00551003 |
13 | 2ab90309c7 |
14 | 16578568dd |
15 | bb27e3b46 |
hex | 7021a97c3 |
30100068291 has 16 divisors (see below), whose sum is σ = 40913539200. Its totient is φ = 19678319808.
The previous prime is 30100068247. The next prime is 30100068293. The reversal of 30100068291 is 19286000103.
It is not a de Polignac number, because 30100068291 - 26 = 30100068227 is a prime.
It is a super-2 number, since 2×301000682912 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30100068293) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135501 + ... + 280286.
It is an arithmetic number, because the mean of its divisors is an integer number (2557096200).
Almost surely, 230100068291 is an apocalyptic number.
30100068291 is a deficient number, since it is larger than the sum of its proper divisors (10813470909).
30100068291 is a wasteful number, since it uses less digits than its factorization.
30100068291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 416258.
The product of its (nonzero) digits is 2592, while the sum is 30.
Adding to 30100068291 its reverse (19286000103), we get a palindrome (49386068394).
The spelling of 30100068291 in words is "thirty billion, one hundred million, sixty-eight thousand, two hundred ninety-one".
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