Base | Representation |
---|---|
bin | 11111101001011111100… |
… | …11100100101110100001 |
3 | 10211221211210002100202001 |
4 | 33310233303210232201 |
5 | 120304023231243232 |
6 | 2151320300324001 |
7 | 141364333035160 |
oct | 17645763445641 |
9 | 3757753070661 |
10 | 1087428774817 |
11 | 38a1a32154a0 |
12 | 156901843601 |
13 | 7b70c4b12a8 |
14 | 3a8bba733d7 |
15 | 1d446ee86e7 |
hex | fd2fce4ba1 |
1087428774817 has 8 divisors (see below), whose sum is σ = 1355755355712. Its totient is φ = 847347097200.
The previous prime is 1087428774793. The next prime is 1087428774877. The reversal of 1087428774817 is 7184778247801.
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 1087428774817 - 235 = 1053069036449 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1087428774877) 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, 7061225734 + ... + 7061225887.
It is an arithmetic number, because the mean of its divisors is an integer number (169469419464).
Almost surely, 21087428774817 is an apocalyptic number.
It is an amenable number.
1087428774817 is a deficient number, since it is larger than the sum of its proper divisors (268326580895).
1087428774817 is a wasteful number, since it uses less digits than its factorization.
1087428774817 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14122451639.
The product of its (nonzero) digits is 39337984, while the sum is 64.
The spelling of 1087428774817 in words is "one trillion, eighty-seven billion, four hundred twenty-eight million, seven hundred seventy-four thousand, eight hundred seventeen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •