Base | Representation |
---|---|
bin | 10101001110100111… |
… | …000001000000100000 |
3 | 2011211112100021110022 |
4 | 111032213001000200 |
5 | 333140140441242 |
6 | 14245443453012 |
7 | 1434564100112 |
oct | 251647010040 |
9 | 64745307408 |
10 | 22793687072 |
11 | 9737495512 |
12 | 4501687168 |
13 | 21c3404600 |
14 | 11633453b2 |
15 | 8d615a0d2 |
hex | 54e9c1020 |
22793687072 has 54 divisors (see below), whose sum is σ = 48616213527. Its totient is φ = 10515038976.
The previous prime is 22793687071. The next prime is 22793687087. The reversal of 22793687072 is 27078639722.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 5 ways, for example, as 3638019856 + 19155667216 = 60316^2 + 138404^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=106756.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (22793687071) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11101598 + ... + 11103650.
Almost surely, 222793687072 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 22793687072
22793687072 is an abundant number, since it is smaller than the sum of its proper divisors (25822526455).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22793687072 is an frugal number, since it uses more digits than its factorization.
22793687072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4142 (or 2068 counting only the distinct ones).
The product of its (nonzero) digits is 3556224, while the sum is 53.
The spelling of 22793687072 in words is "twenty-two billion, seven hundred ninety-three million, six hundred eighty-seven thousand, seventy-two".
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