Base | Representation |
---|---|
bin | 11100001110001110… |
… | …110101101100001111 |
3 | 2220012220110102202120 |
4 | 130032032311230033 |
5 | 444030201321111 |
6 | 21530554024023 |
7 | 2121643600020 |
oct | 341616655417 |
9 | 86186412676 |
10 | 30303542031 |
11 | 11940617714 |
12 | 5a58718013 |
13 | 2b1c233179 |
14 | 16768a0c47 |
15 | bc55d7406 |
hex | 70e3b5b0f |
30303542031 has 16 divisors (see below), whose sum is σ = 46193472000. Its totient is φ = 17310067488.
The previous prime is 30303541963. The next prime is 30303542033. The reversal of 30303542031 is 13024530303.
It is a happy number.
It is not a de Polignac number, because 30303542031 - 27 = 30303541903 is a prime.
It is a super-2 number, since 2×303035420312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30303541992 and 30303542010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30303542033) 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, 200131 + ... + 317268.
It is an arithmetic number, because the mean of its divisors is an integer number (2887092000).
Almost surely, 230303542031 is an apocalyptic number.
30303542031 is a deficient number, since it is larger than the sum of its proper divisors (15889929969).
30303542031 is a wasteful number, since it uses less digits than its factorization.
30303542031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 520198.
The product of its (nonzero) digits is 3240, while the sum is 24.
The spelling of 30303542031 in words is "thirty billion, three hundred three million, five hundred forty-two thousand, thirty-one".
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