Base | Representation |
---|---|
bin | 10010101011010101… |
… | …100101000100110000 |
3 | 1220202121221121011200 |
4 | 102223111211010300 |
5 | 312032413230000 |
6 | 13113552011200 |
7 | 1306652561643 |
oct | 225325450460 |
9 | 56677847150 |
10 | 20054430000 |
11 | 85612260a0 |
12 | 3a78230b00 |
13 | 1b77a54537 |
14 | d83613a5a |
15 | 7c591d500 |
hex | 4ab565130 |
20054430000 has 600 divisors, whose sum is σ = 78318130176. Its totient is φ = 4747200000.
The previous prime is 20054429981. The next prime is 20054430049. The reversal of 20054430000 is 3445002.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (600).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 46529785 + ... + 46530215.
Almost surely, 220054430000 is an apocalyptic number.
20054430000 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 20054430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39159065088).
20054430000 is an abundant number, since it is smaller than the sum of its proper divisors (58263700176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20054430000 is a wasteful number, since it uses less digits than its factorization.
20054430000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 523 (or 499 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 18.
Adding to 20054430000 its reverse (3445002), we get a palindrome (20057875002).
It can be divided in two parts, 20054 and 430000, that added together give a palindrome (450054).
The spelling of 20054430000 in words is "twenty billion, fifty-four million, four hundred thirty thousand".
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