Base | Representation |
---|---|
bin | 100100011010100011… |
… | …1010000011101101000 |
3 | 21110211221001022121001 |
4 | 1020311013100131220 |
5 | 2240123312144331 |
6 | 55531432124344 |
7 | 5435611223020 |
oct | 1106507203550 |
9 | 243757038531 |
10 | 78200506216 |
11 | 3018a168838 |
12 | 131a52366b4 |
13 | 74b33912b1 |
14 | 3adbb94a80 |
15 | 207a515561 |
hex | 12351d0768 |
78200506216 has 32 divisors (see below), whose sum is σ = 167582378880. Its totient is φ = 33512529600.
The previous prime is 78200506213. The next prime is 78200506259. The reversal of 78200506216 is 61260500287.
It is a happy number.
It is a super-2 number, since 2×782005062162 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (78200506213) 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, 1313821 + ... + 1372051.
It is an arithmetic number, because the mean of its divisors is an integer number (5236949340).
Almost surely, 278200506216 is an apocalyptic number.
It is an amenable number.
78200506216 is an abundant number, since it is smaller than the sum of its proper divisors (89381872664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78200506216 is a wasteful number, since it uses less digits than its factorization.
78200506216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82225 (or 82221 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 37.
The spelling of 78200506216 in words is "seventy-eight billion, two hundred million, five hundred six thousand, two hundred sixteen".
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