Base | Representation |
---|---|
bin | 101111111001000010… |
… | …1110000000000010111 |
3 | 100211110111121001210012 |
4 | 1133302011300000113 |
5 | 3141112013411211 |
6 | 115125143150435 |
7 | 10300421141204 |
oct | 1376205600027 |
9 | 324414531705 |
10 | 102845841431 |
11 | 3a686883973 |
12 | 17b22a4541b |
13 | 991029a298 |
14 | 4d98db8cab |
15 | 2a1decbd8b |
hex | 17f2170017 |
102845841431 has 2 divisors, whose sum is σ = 102845841432. Its totient is φ = 102845841430.
The previous prime is 102845841401. The next prime is 102845841457. The reversal of 102845841431 is 134148548201.
It is a strong prime.
It is an emirp because it is prime and its reverse (134148548201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102845841431 - 222 = 102841647127 is a prime.
It is a super-2 number, since 2×1028458414312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (102845841401) 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, 51422920715 + 51422920716.
It is an arithmetic number, because the mean of its divisors is an integer number (51422920716).
Almost surely, 2102845841431 is an apocalyptic number.
102845841431 is a deficient number, since it is larger than the sum of its proper divisors (1).
102845841431 is an equidigital number, since it uses as much as digits as its factorization.
102845841431 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 122880, while the sum is 41.
The spelling of 102845841431 in words is "one hundred two billion, eight hundred forty-five million, eight hundred forty-one thousand, four hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •