Base | Representation |
---|---|
bin | 100100101110110001… |
… | …0010101111101011100 |
3 | 21112121012011220001210 |
4 | 1021131202111331130 |
5 | 2243020421222020 |
6 | 100123020104420 |
7 | 5461454563401 |
oct | 1113542257534 |
9 | 245535156053 |
10 | 78878695260 |
11 | 304a7a70252 |
12 | 13354395110 |
13 | 7590a34ba1 |
14 | 3b63c922a8 |
15 | 20b9d2a3e0 |
hex | 125d895f5c |
78878695260 has 24 divisors (see below), whose sum is σ = 220860346896. Its totient is φ = 21034318720.
The previous prime is 78878695249. The next prime is 78878695307. The reversal of 78878695260 is 6259687887.
It is a junction number, because it is equal to n+sod(n) for n = 78878695191 and 78878695200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657322401 + ... + 657322520.
It is an arithmetic number, because the mean of its divisors is an integer number (9202514454).
Almost surely, 278878695260 is an apocalyptic number.
It is an amenable number.
78878695260 is an abundant number, since it is smaller than the sum of its proper divisors (141981651636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78878695260 is a wasteful number, since it uses less digits than its factorization.
78878695260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1314644933 (or 1314644931 counting only the distinct ones).
The product of its (nonzero) digits is 81285120, while the sum is 66.
The spelling of 78878695260 in words is "seventy-eight billion, eight hundred seventy-eight million, six hundred ninety-five thousand, two hundred sixty".
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