Base | Representation |
---|---|
bin | 111101011110010… |
… | …011010000110101 |
3 | 2122212200011212222 |
4 | 331132103100311 |
5 | 4103011302042 |
6 | 250201252125 |
7 | 34362234134 |
oct | 7536232065 |
9 | 2585604788 |
10 | 1031353397 |
11 | 48a199088 |
12 | 249494045 |
13 | 1358971a9 |
14 | 9ad8d91b |
15 | 608262d2 |
hex | 3d793435 |
1031353397 has 2 divisors, whose sum is σ = 1031353398. Its totient is φ = 1031353396.
The previous prime is 1031353387. The next prime is 1031353469. The reversal of 1031353397 is 7933531301.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 940894276 + 90459121 = 30674^2 + 9511^2 .
It is a cyclic number.
It is not a de Polignac number, because 1031353397 - 24 = 1031353381 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1031353357) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515676698 + 515676699.
It is an arithmetic number, because the mean of its divisors is an integer number (515676699).
Almost surely, 21031353397 is an apocalyptic number.
It is an amenable number.
1031353397 is a deficient number, since it is larger than the sum of its proper divisors (1).
1031353397 is an equidigital number, since it uses as much as digits as its factorization.
1031353397 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 25515, while the sum is 35.
The square root of 1031353397 is about 32114.6912954181. The cubic root of 1031353397 is about 1010.3437698529.
Adding to 1031353397 its reverse (7933531301), we get a palindrome (8964884698).
The spelling of 1031353397 in words is "one billion, thirty-one million, three hundred fifty-three thousand, three hundred ninety-seven".
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