Base | Representation |
---|---|
bin | 101000100111001100… |
… | …0101100001100111110 |
3 | 22100010010100122220210 |
4 | 1101032120230030332 |
5 | 2412103344110103 |
6 | 104022112053250 |
7 | 6205153343046 |
oct | 1211630541476 |
9 | 270103318823 |
10 | 87214441278 |
11 | 33a95307648 |
12 | 14a9bb34226 |
13 | 82bb9b0293 |
14 | 4314d96726 |
15 | 2406a45e03 |
hex | 144e62c33e |
87214441278 has 32 divisors (see below), whose sum is σ = 175026713472. Its totient is φ = 28971914400.
The previous prime is 87214441277. The next prime is 87214441291.
87214441278 is nontrivially palindromic in base 10.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87214441277) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5877108 + ... + 5891928.
It is an arithmetic number, because the mean of its divisors is an integer number (5469584796).
Almost surely, 287214441278 is an apocalyptic number.
87214441278 is an abundant number, since it is smaller than the sum of its proper divisors (87812272194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87214441278 is a wasteful number, since it uses less digits than its factorization.
87214441278 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18120.
The product of its digits is 802816, while the sum is 48.
The spelling of 87214441278 in words is "eighty-seven billion, two hundred fourteen million, four hundred forty-one thousand, two hundred seventy-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •