Base | Representation |
---|---|
bin | 100101101001100110… |
… | …1010000111101010111 |
3 | 21201200202221221010000 |
4 | 1023103031100331113 |
5 | 2311041314144424 |
6 | 101050541502343 |
7 | 5561416102554 |
oct | 1132315207527 |
9 | 251622857100 |
10 | 80852881239 |
11 | 31320386409 |
12 | 138055719b3 |
13 | 7816a41680 |
14 | 3cb014ba2b |
15 | 21832de3c9 |
hex | 12d3350f57 |
80852881239 has 20 divisors (see below), whose sum is σ = 130071018616. Its totient is φ = 49755618576.
The previous prime is 80852881237. The next prime is 80852881271. The reversal of 80852881239 is 93218825808.
80852881239 is a `hidden beast` number, since 8 + 0 + 8 + 528 + 81 + 2 + 39 = 666.
It is not a de Polignac number, because 80852881239 - 21 = 80852881237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80852881231) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38390629 + ... + 38392734.
Almost surely, 280852881239 is an apocalyptic number.
80852881239 is a deficient number, since it is larger than the sum of its proper divisors (49218137377).
80852881239 is a wasteful number, since it uses less digits than its factorization.
80852881239 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76783388 (or 76783379 counting only the distinct ones).
The product of its (nonzero) digits is 2211840, while the sum is 54.
The spelling of 80852881239 in words is "eighty billion, eight hundred fifty-two million, eight hundred eighty-one thousand, two hundred thirty-nine".
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