Base | Representation |
---|---|
bin | 1000000011010010… |
… | …0010010000100101 |
3 | 12120121210011010120 |
4 | 2000310202100211 |
5 | 13411240133321 |
6 | 554243112153 |
7 | 104362240221 |
oct | 20064422045 |
9 | 5517704116 |
10 | 2161255461 |
11 | a09a77242 |
12 | 503972659 |
13 | 2859b73b1 |
14 | 167073781 |
15 | c9b16ec6 |
hex | 80d22425 |
2161255461 has 8 divisors (see below), whose sum is σ = 2883471360. Its totient is φ = 1439938272.
The previous prime is 2161255451. The next prime is 2161255471. The reversal of 2161255461 is 1645521612.
It is an interprime number because it is at equal distance from previous prime (2161255451) and next prime (2161255471).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2161255461 - 25 = 2161255429 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2161255451) 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, 219045 + ... + 228698.
It is an arithmetic number, because the mean of its divisors is an integer number (360433920).
Almost surely, 22161255461 is an apocalyptic number.
It is an amenable number.
2161255461 is a deficient number, since it is larger than the sum of its proper divisors (722215899).
2161255461 is a wasteful number, since it uses less digits than its factorization.
2161255461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 449355.
The product of its digits is 14400, while the sum is 33.
The square root of 2161255461 is about 46489.3048022876. The cubic root of 2161255461 is about 1292.9112107653.
The spelling of 2161255461 in words is "two billion, one hundred sixty-one million, two hundred fifty-five thousand, four hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •