Base | Representation |
---|---|
bin | 10001010100111… |
… | …10100110110001 |
3 | 101010111201000112 |
4 | 20222132212301 |
5 | 244202300022 |
6 | 22231231105 |
7 | 3413324036 |
oct | 1052364661 |
9 | 333451015 |
10 | 145353137 |
11 | 75058a66 |
12 | 40818495 |
13 | 24162a97 |
14 | 1543938d |
15 | cb628e2 |
hex | 8a9e9b1 |
145353137 has 2 divisors, whose sum is σ = 145353138. Its totient is φ = 145353136.
The previous prime is 145353121. The next prime is 145353139. The reversal of 145353137 is 731353541.
145353137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 128958736 + 16394401 = 11356^2 + 4049^2 .
It is an emirp because it is prime and its reverse (731353541) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 145353137 - 24 = 145353121 is a prime.
It is a super-2 number, since 2×1453531372 = 42255068871481538, which contains 22 as substring.
Together with 145353139, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (145353139) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72676568 + 72676569.
It is an arithmetic number, because the mean of its divisors is an integer number (72676569).
Almost surely, 2145353137 is an apocalyptic number.
It is an amenable number.
145353137 is a deficient number, since it is larger than the sum of its proper divisors (1).
145353137 is an equidigital number, since it uses as much as digits as its factorization.
145353137 is an evil number, because the sum of its binary digits is even.
The product of its digits is 18900, while the sum is 32.
The square root of 145353137 is about 12056.2488776568. The cubic root of 145353137 is about 525.7849325820.
The spelling of 145353137 in words is "one hundred forty-five million, three hundred fifty-three thousand, one hundred thirty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •