Base | Representation |
---|---|
bin | 1110011100011101011… |
… | …0101100101000100001 |
3 | 212201112112120221201222 |
4 | 3213013112230220201 |
5 | 13031211341024331 |
6 | 310000241504425 |
7 | 23633403041606 |
oct | 3470726545041 |
9 | 781475527658 |
10 | 248157751841 |
11 | 96274643a0a |
12 | 40117642115 |
13 | 1a52a4c8c1c |
14 | c021c9c6ad |
15 | 66c6217b7b |
hex | 39c75aca21 |
248157751841 has 4 divisors (see below), whose sum is σ = 248162184384. Its totient is φ = 248153319300.
The previous prime is 248157751819. The next prime is 248157751867. The reversal of 248157751841 is 148157751842.
248157751841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 248157751841 - 222 = 248153557537 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (248157751241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131205 + ... + 2244626.
It is an arithmetic number, because the mean of its divisors is an integer number (62040546096).
Almost surely, 2248157751841 is an apocalyptic number.
It is an amenable number.
248157751841 is a deficient number, since it is larger than the sum of its proper divisors (4432543).
248157751841 is an equidigital number, since it uses as much as digits as its factorization.
248157751841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4432542.
The product of its digits is 2508800, while the sum is 53.
Subtracting from 248157751841 its reverse (148157751842), we obtain a palindrome (99999999999).
The spelling of 248157751841 in words is "two hundred forty-eight billion, one hundred fifty-seven million, seven hundred fifty-one thousand, eight hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •