Base | Representation |
---|---|
bin | 10010111101100101… |
… | …000010001000000000 |
3 | 1221112221211002120000 |
4 | 102331211002020000 |
5 | 313144240033130 |
6 | 13204203320000 |
7 | 1320360101610 |
oct | 227545021000 |
9 | 57487732500 |
10 | 20360471040 |
11 | 86a8a56278 |
12 | 3b42820000 |
13 | 1bc6288c00 |
14 | db211aa40 |
15 | 7e2722260 |
hex | 4bd942200 |
20360471040 has 1200 divisors, whose sum is σ = 91334029248. Its totient is φ = 4244078592.
The previous prime is 20360470981. The next prime is 20360471057. The reversal of 20360471040 is 4017406302.
20360471040 is a `hidden beast` number, since 2 + 0 + 3 + 604 + 7 + 10 + 40 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 20360470995 and 20360471013.
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, 245306839 + ... + 245306921.
Almost surely, 220360471040 is an apocalyptic number.
20360471040 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 20360471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45667014624).
20360471040 is an abundant number, since it is smaller than the sum of its proper divisors (70973558208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20360471040 is an equidigital number, since it uses as much as digits as its factorization.
20360471040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 151 (or 113 counting only the distinct ones).
The product of its (nonzero) digits is 4032, while the sum is 27.
Adding to 20360471040 its reverse (4017406302), we get a palindrome (24377877342).
The spelling of 20360471040 in words is "twenty billion, three hundred sixty million, four hundred seventy-one thousand, forty".
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