Base | Representation |
---|---|
bin | 111111001111100… |
… | …1010111011001111 |
3 | 12110220002212112021 |
4 | 1332133022323033 |
5 | 13321224203211 |
6 | 550323551011 |
7 | 103405361503 |
oct | 17637127317 |
9 | 5426085467 |
10 | 2122100431 |
11 | 999963510 |
12 | 4b282b467 |
13 | 27a858339 |
14 | 161ba0303 |
15 | c6480771 |
hex | 7e7caecf |
2122100431 has 8 divisors (see below), whose sum is σ = 2364274944. Its totient is φ = 1888135320.
The previous prime is 2122100413. The next prime is 2122100473. The reversal of 2122100431 is 1340012212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2122100431 - 27 = 2122100303 is a prime.
It is a super-2 number, since 2×21221004312 = 9006620478500771522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2122100401) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051805 + ... + 2052838.
It is an arithmetic number, because the mean of its divisors is an integer number (295534368).
Almost surely, 22122100431 is an apocalyptic number.
2122100431 is a deficient number, since it is larger than the sum of its proper divisors (242174513).
2122100431 is a wasteful number, since it uses less digits than its factorization.
2122100431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4104701.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 2122100431 is about 46066.2613091186. The cubic root of 2122100431 is about 1285.0557755620.
Adding to 2122100431 its reverse (1340012212), we get a palindrome (3462112643).
The spelling of 2122100431 in words is "two billion, one hundred twenty-two million, one hundred thousand, four hundred thirty-one".
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