Base | Representation |
---|---|
bin | 11100011011101111… |
… | …000110000001010011 |
3 | 2220210200202211200202 |
4 | 130123233012001103 |
5 | 1000011201220311 |
6 | 22005250005415 |
7 | 2130364402532 |
oct | 343357060123 |
9 | 86720684622 |
10 | 30530101331 |
11 | 11a474a0004 |
12 | 5b0057686b |
13 | 2b57159322 |
14 | 16989d8319 |
15 | bda43ae3b |
hex | 71bbc6053 |
30530101331 has 4 divisors (see below), whose sum is σ = 30832379664. Its totient is φ = 30227823000.
The previous prime is 30530101319. The next prime is 30530101421. The reversal of 30530101331 is 13310103503.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13310103503 = 101 ⋅131783203.
It is a cyclic number.
It is not a de Polignac number, because 30530101331 - 230 = 29456359507 is a prime.
It is a super-2 number, since 2×305301013312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30530109331) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151139015 + ... + 151139216.
It is an arithmetic number, because the mean of its divisors is an integer number (7708094916).
Almost surely, 230530101331 is an apocalyptic number.
30530101331 is a deficient number, since it is larger than the sum of its proper divisors (302278333).
30530101331 is a wasteful number, since it uses less digits than its factorization.
30530101331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 302278332.
The product of its (nonzero) digits is 405, while the sum is 20.
Adding to 30530101331 its reverse (13310103503), we get a palindrome (43840204834).
The spelling of 30530101331 in words is "thirty billion, five hundred thirty million, one hundred one thousand, three hundred thirty-one".
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