Base | Representation |
---|---|
bin | 10010101100100110… |
… | …011101100011010000 |
3 | 1220211002211211000100 |
4 | 102230212131203100 |
5 | 312103330222343 |
6 | 13120030252400 |
7 | 1310331030555 |
oct | 225446354320 |
9 | 56732754010 |
10 | 20075632848 |
11 | 8572198107 |
12 | 3a83357100 |
13 | 1b7c2692bb |
14 | d86372a2c |
15 | 7c770a9d3 |
hex | 4ac99d8d0 |
20075632848 has 30 divisors (see below), whose sum is σ = 56183889554. Its totient is φ = 6691877568.
The previous prime is 20075632831. The next prime is 20075632849. The reversal of 20075632848 is 84823657002.
20075632848 is a `hidden beast` number, since 2 + 0 + 0 + 7 + 5 + 632 + 8 + 4 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 14867412624 + 5208220224 = 121932^2 + 72168^2 .
It is a super-2 number, since 2×200756328482 (a number of 21 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20075632849) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69706915 + ... + 69707202.
Almost surely, 220075632848 is an apocalyptic number.
It is an amenable number.
20075632848 is an abundant number, since it is smaller than the sum of its proper divisors (36108256706).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20075632848 is a wasteful number, since it uses less digits than its factorization.
20075632848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 139414131 (or 139414122 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 20075632848 in words is "twenty billion, seventy-five million, six hundred thirty-two thousand, eight hundred forty-eight".
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