Base | Representation |
---|---|
bin | 1110100101101… |
… | …00001100100001 |
3 | 22112021012001112 |
4 | 13102310030201 |
5 | 222311413042 |
6 | 20050513105 |
7 | 3014103203 |
oct | 722641441 |
9 | 275235045 |
10 | 122372897 |
11 | 63092629 |
12 | 34b95795 |
13 | 1c477cca |
14 | 12376773 |
15 | ab23982 |
hex | 74b4321 |
122372897 has 2 divisors, whose sum is σ = 122372898. Its totient is φ = 122372896.
The previous prime is 122372891. The next prime is 122372909. The reversal of 122372897 is 798273221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 116985856 + 5387041 = 10816^2 + 2321^2 .
It is an emirp because it is prime and its reverse (798273221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 122372897 - 28 = 122372641 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (122372891) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61186448 + 61186449.
It is an arithmetic number, because the mean of its divisors is an integer number (61186449).
Almost surely, 2122372897 is an apocalyptic number.
It is an amenable number.
122372897 is a deficient number, since it is larger than the sum of its proper divisors (1).
122372897 is an equidigital number, since it uses as much as digits as its factorization.
122372897 is an evil number, because the sum of its binary digits is even.
The product of its digits is 84672, while the sum is 41.
The square root of 122372897 is about 11062.2283921460. The cubic root of 122372897 is about 496.4723661300.
The spelling of 122372897 in words is "one hundred twenty-two million, three hundred seventy-two thousand, eight hundred ninety-seven".
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