Base | Representation |
---|---|
bin | 11011111101101001… |
… | …000100100111101111 |
3 | 2212111111201111212010 |
4 | 123331221010213233 |
5 | 442442423100010 |
6 | 21443212212303 |
7 | 2112024020322 |
oct | 337551044757 |
9 | 85444644763 |
10 | 30025206255 |
11 | 1180849a950 |
12 | 599b46a093 |
13 | 2aa667c145 |
14 | 164b92a7b9 |
15 | baae57620 |
hex | 6fda449ef |
30025206255 has 16 divisors (see below), whose sum is σ = 52407633024. Its totient is φ = 14557675680.
The previous prime is 30025206241. The next prime is 30025206301. The reversal of 30025206255 is 55260252003.
It is not a de Polignac number, because 30025206255 - 211 = 30025204207 is a prime.
It is a super-2 number, since 2×300252062552 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90985309 + ... + 90985638.
It is an arithmetic number, because the mean of its divisors is an integer number (3275477064).
Almost surely, 230025206255 is an apocalyptic number.
30025206255 is a deficient number, since it is larger than the sum of its proper divisors (22382426769).
30025206255 is a wasteful number, since it uses less digits than its factorization.
30025206255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181970966.
The product of its (nonzero) digits is 18000, while the sum is 30.
Adding to 30025206255 its reverse (55260252003), we get a palindrome (85285458258).
The spelling of 30025206255 in words is "thirty billion, twenty-five million, two hundred six thousand, two hundred fifty-five".
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