Base | Representation |
---|---|
bin | 100001010001000101… |
… | …1111101110101000000 |
3 | 20211101210221120100000 |
4 | 1002202023331311000 |
5 | 2132302233210220 |
6 | 52452550200000 |
7 | 5106235264611 |
oct | 1024213756500 |
9 | 224353846300 |
10 | 71440522560 |
11 | 28330348a90 |
12 | 11a19353000 |
13 | 6976a13774 |
14 | 365a075c08 |
15 | 1cd1d0c390 |
hex | 10a22fdd40 |
71440522560 has 840 divisors, whose sum is σ = 295366964256. Its totient is φ = 16300154880.
The previous prime is 71440522507. The next prime is 71440522567. The reversal of 71440522560 is 6522504417.
It is a happy number.
71440522560 is a `hidden beast` number, since 7 + 1 + 4 + 40 + 52 + 2 + 560 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71440522567) by changing a digit.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4202383672 + ... + 4202383688.
Almost surely, 271440522560 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 71440522560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147683482128).
71440522560 is an abundant number, since it is smaller than the sum of its proper divisors (223926441696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71440522560 is an frugal number, since it uses more digits than its factorization.
71440522560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111 (or 38 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 36.
The spelling of 71440522560 in words is "seventy-one billion, four hundred forty million, five hundred twenty-two thousand, five hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •