Base | Representation |
---|---|
bin | 1100001011100… |
… | …1110011001000 |
3 | 10120010202222111 |
4 | 3002321303020 |
5 | 101034431210 |
6 | 5023032104 |
7 | 1160165152 |
oct | 302716310 |
9 | 116122874 |
10 | 51092680 |
11 | 26927761 |
12 | 1513b634 |
13 | a77b872 |
14 | 6addad2 |
15 | 474388a |
hex | 30b9cc8 |
51092680 has 32 divisors (see below), whose sum is σ = 115610040. Its totient is φ = 20321280.
The previous prime is 51092677. The next prime is 51092687. The reversal of 51092680 is 8629015.
It can be written as a sum of positive squares in 4 ways, for example, as 42484324 + 8608356 = 6518^2 + 2934^2 .
It is a super-2 number, since 2×510926802 = 5220923899164800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (51092687) 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, 3712 + ... + 10768.
Almost surely, 251092680 is an apocalyptic number.
It is an amenable number.
51092680 is an abundant number, since it is smaller than the sum of its proper divisors (64517360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51092680 is a wasteful number, since it uses less digits than its factorization.
51092680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7249 (or 7245 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 31.
The square root of 51092680 is about 7147.9143811324. The cubic root of 51092680 is about 371.0674797278.
The spelling of 51092680 in words is "fifty-one million, ninety-two thousand, six hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.120 sec. • engine limits •