Base | Representation |
---|---|
bin | 1110101010111… |
… | …11001010110001 |
3 | 22120120202200201 |
4 | 13111133022301 |
5 | 223001320301 |
6 | 20113515201 |
7 | 3023050666 |
oct | 725371261 |
9 | 276522621 |
10 | 123073201 |
11 | 63520799 |
12 | 35272b01 |
13 | 1c6619a4 |
14 | 124b9a6d |
15 | ac11201 |
hex | 755f2b1 |
123073201 has 2 divisors, whose sum is σ = 123073202. Its totient is φ = 123073200.
The previous prime is 123073199. The next prime is 123073259. The reversal of 123073201 is 102370321.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 61858225 + 61214976 = 7865^2 + 7824^2 .
It is an emirp because it is prime and its reverse (102370321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 123073201 - 21 = 123073199 is a prime.
Together with 123073199, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (123073001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61536600 + 61536601.
It is an arithmetic number, because the mean of its divisors is an integer number (61536601).
Almost surely, 2123073201 is an apocalyptic number.
It is an amenable number.
123073201 is a deficient number, since it is larger than the sum of its proper divisors (1).
123073201 is an equidigital number, since it uses as much as digits as its factorization.
123073201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 19.
The square root of 123073201 is about 11093.8361714963. The cubic root of 123073201 is about 497.4176202578.
The spelling of 123073201 in words is "one hundred twenty-three million, seventy-three thousand, two hundred one".
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