Base | Representation |
---|---|
bin | 11100001001010100… |
… | …000101011001100010 |
3 | 2220000011012102220211 |
4 | 130021110011121202 |
5 | 443343040443020 |
6 | 21514445324334 |
7 | 2116622345062 |
oct | 341124053142 |
9 | 86004172824 |
10 | 30221031010 |
11 | 118a8a90995 |
12 | 5a34b666aa |
13 | 2b08103b91 |
14 | 16699433a2 |
15 | bbd23985a |
hex | 709505662 |
30221031010 has 32 divisors (see below), whose sum is σ = 56833322112. Its totient is φ = 11548500480.
The previous prime is 30221031007. The next prime is 30221031011. The reversal of 30221031010 is 1013012203.
It is not an unprimeable number, because it can be changed into a prime (30221031011) 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, 105522 + ... + 267538.
It is an arithmetic number, because the mean of its divisors is an integer number (1776041316).
Almost surely, 230221031010 is an apocalyptic number.
30221031010 is a deficient number, since it is larger than the sum of its proper divisors (26612291102).
30221031010 is a wasteful number, since it uses less digits than its factorization.
30221031010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162858.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 30221031010 its reverse (1013012203), we get a palindrome (31234043213).
The spelling of 30221031010 in words is "thirty billion, two hundred twenty-one million, thirty-one thousand, ten".
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