Base | Representation |
---|---|
bin | 1011010010101001… |
… | …1110000011010101 |
3 | 21211020102101021020 |
4 | 2310222132003111 |
5 | 22201421011041 |
6 | 1220433311353 |
7 | 135053230023 |
oct | 26452360325 |
9 | 7736371236 |
10 | 3031032021 |
11 | 1315a36246 |
12 | 707105559 |
13 | 393c5b194 |
14 | 20a7a3713 |
15 | 12b173866 |
hex | b4a9e0d5 |
3031032021 has 16 divisors (see below), whose sum is σ = 4137247488. Its totient is φ = 1972958400.
The previous prime is 3031031963. The next prime is 3031032077. The reversal of 3031032021 is 1202301303.
3031032021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 3031032021 - 221 = 3028934869 is a prime.
It is a super-2 number, since 2×30310320212 = 18374310224654688882, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3031033021) 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, 33831 + ... + 84891.
It is an arithmetic number, because the mean of its divisors is an integer number (258577968).
Almost surely, 23031032021 is an apocalyptic number.
It is an amenable number.
3031032021 is a deficient number, since it is larger than the sum of its proper divisors (1106215467).
3031032021 is a wasteful number, since it uses less digits than its factorization.
3031032021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51532.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 3031032021 is about 55054.8092449697. The cubic root of 3031032021 is about 1447.2054015505.
Adding to 3031032021 its reverse (1202301303), we get a palindrome (4233333324).
The spelling of 3031032021 in words is "three billion, thirty-one million, thirty-two thousand, twenty-one".
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