Base | Representation |
---|---|
bin | 111110101011100… |
… | …1001111100001111 |
3 | 12102120120202020021 |
4 | 1331113021330033 |
5 | 13301411101111 |
6 | 544411203011 |
7 | 103056043441 |
oct | 17527117417 |
9 | 5376522207 |
10 | 2103222031 |
11 | 98a239929 |
12 | 4a8446467 |
13 | 2769785a1 |
14 | 15d488491 |
15 | c49a1d71 |
hex | 7d5c9f0f |
2103222031 has 4 divisors (see below), whose sum is σ = 2226940992. Its totient is φ = 1979503072.
The previous prime is 2103222007. The next prime is 2103222041. The reversal of 2103222031 is 1302223012.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2103222031 - 223 = 2094833423 is a prime.
It is a super-2 number, since 2×21032220312 = 8847085823367529922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2103221996 and 2103222014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2103222041) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61859455 + ... + 61859488.
It is an arithmetic number, because the mean of its divisors is an integer number (556735248).
Almost surely, 22103222031 is an apocalyptic number.
2103222031 is a deficient number, since it is larger than the sum of its proper divisors (123718961).
2103222031 is a wasteful number, since it uses less digits than its factorization.
2103222031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123718960.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 2103222031 is about 45860.8987155725. The cubic root of 2103222031 is about 1281.2337613932.
Adding to 2103222031 its reverse (1302223012), we get a palindrome (3405445043).
The spelling of 2103222031 in words is "two billion, one hundred three million, two hundred twenty-two thousand, thirty-one".
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