Base | Representation |
---|---|
bin | 10010110100001011… |
… | …011001001000000000 |
3 | 1221010222001021012220 |
4 | 102310023121020000 |
5 | 312333401121220 |
6 | 13140411051040 |
7 | 1313433403032 |
oct | 226413311000 |
9 | 57128037186 |
10 | 20202754560 |
11 | 8627a2357a |
12 | 3ab9a40a80 |
13 | 1b9c6b7951 |
14 | d991c3c52 |
15 | 7d396b540 |
hex | 4b42d9200 |
20202754560 has 160 divisors (see below), whose sum is σ = 66669875712. Its totient is φ = 5213552640.
The previous prime is 20202754519. The next prime is 20202754567. The reversal of 20202754560 is 6545720202.
It is a tau number, because it is divible by the number of its divisors (160).
It is not an unprimeable number, because it can be changed into a prime (20202754567) 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, 195652 + ... + 280508.
Almost surely, 220202754560 is an apocalyptic number.
20202754560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20202754560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33334937856).
20202754560 is an abundant number, since it is smaller than the sum of its proper divisors (46467121152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20202754560 is an equidigital number, since it uses as much as digits as its factorization.
20202754560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84914 (or 84898 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 33.
The spelling of 20202754560 in words is "twenty billion, two hundred two million, seven hundred fifty-four thousand, five hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •