Base | Representation |
---|---|
bin | 100100101111100111… |
… | …0101001110100001111 |
3 | 21112200011121101210001 |
4 | 1021133032221310033 |
5 | 2243100203310033 |
6 | 100125512425131 |
7 | 5462251116442 |
oct | 1113716516417 |
9 | 245604541701 |
10 | 78907088143 |
11 | 30511aa3244 |
12 | 133619a81a7 |
13 | 7596896500 |
14 | 3b67963659 |
15 | 20bc587e7d |
hex | 125f3a9d0f |
78907088143 has 12 divisors (see below), whose sum is σ = 85456834920. Its totient is φ = 72826175136.
The previous prime is 78907088137. The next prime is 78907088153. The reversal of 78907088143 is 34188070987.
It is a happy number.
It is not a de Polignac number, because 78907088143 - 29 = 78907087631 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 (78907088153) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1198773 + ... + 1262881.
It is an arithmetic number, because the mean of its divisors is an integer number (7121402910).
Almost surely, 278907088143 is an apocalyptic number.
78907088143 is a deficient number, since it is larger than the sum of its proper divisors (6549746777).
78907088143 is a wasteful number, since it uses less digits than its factorization.
78907088143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71418 (or 71405 counting only the distinct ones).
The product of its (nonzero) digits is 2709504, while the sum is 55.
The spelling of 78907088143 in words is "seventy-eight billion, nine hundred seven million, eighty-eight thousand, one hundred forty-three".
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