Base | Representation |
---|---|
bin | 100001111100000001… |
… | …1000110101100010110 |
3 | 20222010012112102222100 |
4 | 1003320003012230112 |
5 | 2143230021241100 |
6 | 53251525342530 |
7 | 5160026422422 |
oct | 1037003065426 |
9 | 228105472870 |
10 | 72881040150 |
11 | 289aa4a1196 |
12 | 1215b867a46 |
13 | 6b462aa539 |
14 | 37554d3b82 |
15 | 1d68507400 |
hex | 10f80c6b16 |
72881040150 has 72 divisors (see below), whose sum is σ = 199017087984. Its totient is φ = 19116331200.
The previous prime is 72881040137. The next prime is 72881040209. The reversal of 72881040150 is 5104018827.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1300074 + ... + 1354973.
It is an arithmetic number, because the mean of its divisors is an integer number (2764126222).
Almost surely, 272881040150 is an apocalyptic number.
72881040150 is an abundant number, since it is smaller than the sum of its proper divisors (126136047834).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72881040150 is a wasteful number, since it uses less digits than its factorization.
72881040150 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2655126 (or 2655118 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
Adding to 72881040150 its reverse (5104018827), we get a palindrome (77985058977).
The spelling of 72881040150 in words is "seventy-two billion, eight hundred eighty-one million, forty thousand, one hundred fifty".
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