Base | Representation |
---|---|
bin | 10010101011010101… |
… | …010111111111010000 |
3 | 1220202121211212122111 |
4 | 102223111113333100 |
5 | 312032410021100 |
6 | 13113550515104 |
7 | 1306652246452 |
oct | 225325277720 |
9 | 56677755574 |
10 | 20054376400 |
11 | 85611998a3 |
12 | 3a78205a94 |
13 | 1b77a36016 |
14 | d835dc2d2 |
15 | 7c590c6ba |
hex | 4ab557fd0 |
20054376400 has 60 divisors (see below), whose sum is σ = 51014811852. Its totient is φ = 7549880320.
The previous prime is 20054376347. The next prime is 20054376403. The reversal of 20054376400 is 467345002.
It can be written as a sum of positive squares in 6 ways, for example, as 204947856 + 19849428544 = 14316^2 + 140888^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20054376403) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467787 + ... + 1481386.
Almost surely, 220054376400 is an apocalyptic number.
20054376400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20054376400 is an abundant number, since it is smaller than the sum of its proper divisors (30960435452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20054376400 is a wasteful number, since it uses less digits than its factorization.
20054376400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2949208 (or 2949197 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 31.
The spelling of 20054376400 in words is "twenty billion, fifty-four million, three hundred seventy-six thousand, four hundred".
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