Base | Representation |
---|---|
bin | 11100000010001010… |
… | …010100110010111001 |
3 | 2212200210101212101112 |
4 | 130002022110302321 |
5 | 443121331011441 |
6 | 21454521330105 |
7 | 2113634360066 |
oct | 340212246271 |
9 | 85623355345 |
10 | 30101032121 |
11 | 1184727aa56 |
12 | 5a00936935 |
13 | 2ab92aa614 |
14 | 1657a27c6d |
15 | bb29344eb |
hex | 702294cb9 |
30101032121 has 16 divisors (see below), whose sum is σ = 31885591680. Its totient is φ = 28359091200.
The previous prime is 30101032109. The next prime is 30101032139. The reversal of 30101032121 is 12123010103.
It is a cyclic number.
It is not a de Polignac number, because 30101032121 - 26 = 30101032057 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30101032096 and 30101032105.
It is not an unprimeable number, because it can be changed into a prime (30101032021) 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, 414770 + ... + 481908.
It is an arithmetic number, because the mean of its divisors is an integer number (1992849480).
Almost surely, 230101032121 is an apocalyptic number.
It is an amenable number.
30101032121 is a deficient number, since it is larger than the sum of its proper divisors (1784559559).
30101032121 is a wasteful number, since it uses less digits than its factorization.
30101032121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 67456.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 30101032121 its reverse (12123010103), we get a palindrome (42224042224).
The spelling of 30101032121 in words is "thirty billion, one hundred one million, thirty-two thousand, one hundred twenty-one".
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