Base | Representation |
---|---|
bin | 11100001001010100… |
… | …000101011011011010 |
3 | 2220000011012110002021 |
4 | 130021110011123122 |
5 | 443343040444010 |
6 | 21514445325054 |
7 | 2116622345323 |
oct | 341124053332 |
9 | 86004173067 |
10 | 30221031130 |
11 | 118a8a90a94 |
12 | 5a34b6678a |
13 | 2b08103c54 |
14 | 166994344a |
15 | bbd2398da |
hex | 7095056da |
30221031130 has 16 divisors (see below), whose sum is σ = 54936450504. Its totient is φ = 11968724800.
The previous prime is 30221031119. The next prime is 30221031133. The reversal of 30221031130 is 3113012203.
It can be written as a sum of positive squares in 4 ways, for example, as 29711761641 + 509269489 = 172371^2 + 22567^2 .
It is a super-3 number, since 3×302210311303 (a number of 32 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (30221031133) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14959897 + ... + 14961916.
Almost surely, 230221031130 is an apocalyptic number.
30221031130 is a deficient number, since it is larger than the sum of its proper divisors (24715419374).
30221031130 is a wasteful number, since it uses less digits than its factorization.
30221031130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29921921.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30221031130 its reverse (3113012203), we get a palindrome (33334043333).
The spelling of 30221031130 in words is "thirty billion, two hundred twenty-one million, thirty-one thousand, one hundred thirty".
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