Base | Representation |
---|---|
bin | 111110101000001… |
… | …0101001011000111 |
3 | 12102110012212012000 |
4 | 1331100111023013 |
5 | 13300431324111 |
6 | 544305000343 |
7 | 103034612625 |
oct | 17520251307 |
9 | 5373185160 |
10 | 2101433031 |
11 | 989227815 |
12 | 4a79230b3 |
13 | 2764a01c9 |
14 | 15d140515 |
15 | c474bc56 |
hex | 7d4152c7 |
2101433031 has 16 divisors (see below), whose sum is σ = 3166003200. Its totient is φ = 1377209304.
The previous prime is 2101433029. The next prime is 2101433051. The reversal of 2101433031 is 1303341012.
It is not a de Polignac number, because 2101433031 - 21 = 2101433029 is a prime.
It is a super-2 number, since 2×21014330312 = 8832041567555693922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2101432995 and 2101433013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2101433011) 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, 657991 + ... + 661176.
It is an arithmetic number, because the mean of its divisors is an integer number (197875200).
Almost surely, 22101433031 is an apocalyptic number.
2101433031 is a deficient number, since it is larger than the sum of its proper divisors (1064570169).
2101433031 is a wasteful number, since it uses less digits than its factorization.
2101433031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1319235 (or 1319229 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 2101433031 is about 45841.3899331161. The cubic root of 2101433031 is about 1280.8703859995.
Adding to 2101433031 its reverse (1303341012), we get a palindrome (3404774043).
It can be divided in two parts, 21014 and 33031, that added together give a palindrome (54045).
The spelling of 2101433031 in words is "two billion, one hundred one million, four hundred thirty-three thousand, thirty-one".
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