Base | Representation |
---|---|
bin | 100001000101100110… |
… | …1011101110011000000 |
3 | 20210101221121000020022 |
4 | 1002023031131303000 |
5 | 2131010042232210 |
6 | 52350420033012 |
7 | 5063544605042 |
oct | 1021315356300 |
9 | 223357530208 |
10 | 71055039680 |
11 | 28152798a99 |
12 | 11930232768 |
13 | 6914bb5aa1 |
14 | 3620bada92 |
15 | 1cad065155 |
hex | 108b35dcc0 |
71055039680 has 56 divisors (see below), whose sum is σ = 170134757520. Its totient is φ = 28264965120.
The previous prime is 71055039641. The next prime is 71055039683. The reversal of 71055039680 is 8693055017.
It is not an unprimeable number, because it can be changed into a prime (71055039683) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555470 + ... + 671309.
It is an arithmetic number, because the mean of its divisors is an integer number (3038120670).
Almost surely, 271055039680 is an apocalyptic number.
It is an amenable number.
71055039680 is an abundant number, since it is smaller than the sum of its proper divisors (99079717840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71055039680 is a wasteful number, since it uses less digits than its factorization.
71055039680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1226977 (or 1226967 counting only the distinct ones).
The product of its (nonzero) digits is 226800, while the sum is 44.
The spelling of 71055039680 in words is "seventy-one billion, fifty-five million, thirty-nine thousand, six hundred eighty".
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