Base | Representation |
---|---|
bin | 10001001100100… |
… | …10100010011011 |
3 | 101001102220211122 |
4 | 20212102202123 |
5 | 243412131011 |
6 | 22151515455 |
7 | 3401101616 |
oct | 1046224233 |
9 | 331386748 |
10 | 144255131 |
11 | 74479019 |
12 | 40388b8b |
13 | 23b6a087 |
14 | 1523117d |
15 | c9e73db |
hex | 899289b |
144255131 has 2 divisors, whose sum is σ = 144255132. Its totient is φ = 144255130.
The previous prime is 144255113. The next prime is 144255157. The reversal of 144255131 is 131552441.
Together with previous prime (144255113) it forms an Ormiston pair, because they use the same digits, order apart.
It is an a-pointer prime, because the next prime (144255157) can be obtained adding 144255131 to its sum of digits (26).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 144255131 - 218 = 143992987 is a prime.
It is a super-2 number, since 2×1442551312 = 41619085639654322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 144255131.
It is not a weakly prime, because it can be changed into another prime (144285131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72127565 + 72127566.
It is an arithmetic number, because the mean of its divisors is an integer number (72127566).
Almost surely, 2144255131 is an apocalyptic number.
144255131 is a deficient number, since it is larger than the sum of its proper divisors (1).
144255131 is an equidigital number, since it uses as much as digits as its factorization.
144255131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2400, while the sum is 26.
The square root of 144255131 is about 12010.6257538898. The cubic root of 144255131 is about 524.4576482303.
The spelling of 144255131 in words is "one hundred forty-four million, two hundred fifty-five thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •