Base | Representation |
---|---|
bin | 11100100010101110… |
… | …010111001111010111 |
3 | 2221002212101200221121 |
4 | 130202232113033113 |
5 | 1000231210201411 |
6 | 22025035024411 |
7 | 2133320115211 |
oct | 344256271727 |
9 | 87085350847 |
10 | 30647350231 |
11 | 11aa76a2923 |
12 | 5b3389b107 |
13 | 2b7552bc84 |
14 | 16aa3d95b1 |
15 | be589b571 |
hex | 722b973d7 |
30647350231 has 16 divisors (see below), whose sum is σ = 32523194368. Its totient is φ = 28828548000.
The previous prime is 30647350229. The next prime is 30647350243. The reversal of 30647350231 is 13205374603.
It is a cyclic number.
It is not a de Polignac number, because 30647350231 - 21 = 30647350229 is a prime.
It is a super-2 number, since 2×306473502312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30647357231) 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, 1192786 + ... + 1218208.
It is an arithmetic number, because the mean of its divisors is an integer number (2032699648).
Almost surely, 230647350231 is an apocalyptic number.
30647350231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30647350231 is a deficient number, since it is larger than the sum of its proper divisors (1875844137).
30647350231 is a wasteful number, since it uses less digits than its factorization.
30647350231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26542.
The product of its (nonzero) digits is 45360, while the sum is 34.
The spelling of 30647350231 in words is "thirty billion, six hundred forty-seven million, three hundred fifty thousand, two hundred thirty-one".
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