Base | Representation |
---|---|
bin | 111101000110100… |
… | …010001010110101 |
3 | 2122102221122101102 |
4 | 331012202022311 |
5 | 4044412413442 |
6 | 245415535445 |
7 | 34255254533 |
oct | 7506421265 |
9 | 2572848342 |
10 | 1025122997 |
11 | 486723098 |
12 | 24738a585 |
13 | 1344c5372 |
14 | 9a20b153 |
15 | 5eee5232 |
hex | 3d1a22b5 |
1025122997 has 2 divisors, whose sum is σ = 1025122998. Its totient is φ = 1025122996.
The previous prime is 1025122963. The next prime is 1025123081. The reversal of 1025122997 is 7992215201.
1025122997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 577969681 + 447153316 = 24041^2 + 21146^2 .
It is an emirp because it is prime and its reverse (7992215201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1025122997 - 210 = 1025121973 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1025122997.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1025122927) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512561498 + 512561499.
It is an arithmetic number, because the mean of its divisors is an integer number (512561499).
Almost surely, 21025122997 is an apocalyptic number.
It is an amenable number.
1025122997 is a deficient number, since it is larger than the sum of its proper divisors (1).
1025122997 is an equidigital number, since it uses as much as digits as its factorization.
1025122997 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 22680, while the sum is 38.
The square root of 1025122997 is about 32017.5420199615. The cubic root of 1025122997 is about 1008.3051656058.
The spelling of 1025122997 in words is "one billion, twenty-five million, one hundred twenty-two thousand, nine hundred ninety-seven".
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