Base | Representation |
---|---|
bin | 11100001000001000… |
… | …100001011010101111 |
3 | 2212221202221002012120 |
4 | 130020020201122233 |
5 | 443323003112311 |
6 | 21512501004023 |
7 | 2116262105223 |
oct | 341010413257 |
9 | 85852832176 |
10 | 30201222831 |
11 | 1189889179a |
12 | 5a2a3b3613 |
13 | 2b03c89b70 |
14 | 1667068783 |
15 | bbb625706 |
hex | 7082216af |
30201222831 has 16 divisors (see below), whose sum is σ = 44423564640. Its totient is φ = 18132065280.
The previous prime is 30201222809. The next prime is 30201222839. The reversal of 30201222831 is 13822210203.
It is a happy number.
It is not a de Polignac number, because 30201222831 - 213 = 30201214639 is a prime.
It is a super-2 number, since 2×302012228312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30201222839) 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, 9442186 + ... + 9445383.
It is an arithmetic number, because the mean of its divisors is an integer number (2776472790).
Almost surely, 230201222831 is an apocalyptic number.
30201222831 is a deficient number, since it is larger than the sum of its proper divisors (14222341809).
30201222831 is a wasteful number, since it uses less digits than its factorization.
30201222831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18887626.
The product of its (nonzero) digits is 1152, while the sum is 24.
The spelling of 30201222831 in words is "thirty billion, two hundred one million, two hundred twenty-two thousand, eight hundred thirty-one".
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