Base | Representation |
---|---|
bin | 10010101100011110… |
… | …100010000101110010 |
3 | 1220210221221012202201 |
4 | 102230132202011302 |
5 | 312102312214130 |
6 | 13115513533414 |
7 | 1310304252616 |
oct | 225436420562 |
9 | 56727835681 |
10 | 20073554290 |
11 | 8570aa8499 |
12 | 3a8271426a |
13 | 1b7b9bc19a |
14 | d85d91346 |
15 | 7c7449bca |
hex | 4ac7a2172 |
20073554290 has 16 divisors (see below), whose sum is σ = 37703371968. Its totient is φ = 7680316336.
The previous prime is 20073554261. The next prime is 20073554297. The reversal of 20073554290 is 9245537002.
It is not an unprimeable number, because it can be changed into a prime (20073554297) 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, 43637932 + ... + 43638391.
It is an arithmetic number, because the mean of its divisors is an integer number (2356460748).
Almost surely, 220073554290 is an apocalyptic number.
20073554290 is a deficient number, since it is larger than the sum of its proper divisors (17629817678).
20073554290 is a wasteful number, since it uses less digits than its factorization.
20073554290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87276353.
The product of its (nonzero) digits is 75600, while the sum is 37.
It can be divided in two parts, 200735 and 54290, that added together give a square (255025 = 5052).
The spelling of 20073554290 in words is "twenty billion, seventy-three million, five hundred fifty-four thousand, two hundred ninety".
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