Base | Representation |
---|---|
bin | 100101110110011… |
… | …1110001010100001 |
3 | 10021111212202102222 |
4 | 1023230332022201 |
5 | 10100120031121 |
6 | 330010120425 |
7 | 43321334420 |
oct | 11354761241 |
9 | 3244782388 |
10 | 1270080161 |
11 | 5a1a22029 |
12 | 2b5420115 |
13 | 17319062c |
14 | c09732b7 |
15 | 767800ab |
hex | 4bb3e2a1 |
1270080161 has 8 divisors (see below), whose sum is σ = 1451782080. Its totient is φ = 1088443728.
The previous prime is 1270080157. The next prime is 1270080173. The reversal of 1270080161 is 1610800721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1270080161 - 22 = 1270080157 is a prime.
It is a super-2 number, since 2×12700801612 = 3226207230731571842, 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 1270080161.
It is not an unprimeable number, because it can be changed into a prime (1270080191) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36650 + ... + 62316.
It is an arithmetic number, because the mean of its divisors is an integer number (181472760).
Almost surely, 21270080161 is an apocalyptic number.
It is an amenable number.
1270080161 is a deficient number, since it is larger than the sum of its proper divisors (181701919).
1270080161 is an equidigital number, since it uses as much as digits as its factorization.
1270080161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32743.
The product of its (nonzero) digits is 672, while the sum is 26.
The square root of 1270080161 is about 35638.1840306153. The cubic root of 1270080161 is about 1082.9549168468.
Adding to 1270080161 its reverse (1610800721), we get a palindrome (2880880882).
The spelling of 1270080161 in words is "one billion, two hundred seventy million, eighty thousand, one hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •