Base | Representation |
---|---|
bin | 100100010101100011… |
… | …1100001001000011011 |
3 | 21110102020111002010001 |
4 | 1020223013201020123 |
5 | 2234302344133311 |
6 | 55503041433431 |
7 | 5431503606301 |
oct | 1105307411033 |
9 | 243366432101 |
10 | 78032802331 |
11 | 30103534390 |
12 | 1315903b877 |
13 | 7487704123 |
14 | 3ac37bc271 |
15 | 206a93a4c1 |
hex | 122b1e121b |
78032802331 has 8 divisors (see below), whose sum is σ = 90134146224. Its totient is φ = 66766033920.
The previous prime is 78032802307. The next prime is 78032802361. The reversal of 78032802331 is 13320823087.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 78032802331 - 25 = 78032802299 is a prime.
It is a super-2 number, since 2×780328023312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (78032802361) 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, 208643670 + ... + 208644043.
It is an arithmetic number, because the mean of its divisors is an integer number (11266768278).
Almost surely, 278032802331 is an apocalyptic number.
78032802331 is a deficient number, since it is larger than the sum of its proper divisors (12101343893).
78032802331 is a wasteful number, since it uses less digits than its factorization.
78032802331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 417287741.
The product of its (nonzero) digits is 48384, while the sum is 37.
The spelling of 78032802331 in words is "seventy-eight billion, thirty-two million, eight hundred two thousand, three hundred thirty-one".
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