Base | Representation |
---|---|
bin | 1001010100110… |
… | …11010110110010 |
3 | 12110012112201001 |
4 | 10222123112302 |
5 | 130011342322 |
6 | 11432432214 |
7 | 1636644415 |
oct | 452332662 |
9 | 173175631 |
10 | 78230962 |
11 | 40183097 |
12 | 2224866a |
13 | 13291114 |
14 | a565b7c |
15 | 6d04827 |
hex | 4a9b5b2 |
78230962 has 8 divisors (see below), whose sum is σ = 117764892. Its totient is φ = 38976000.
The previous prime is 78230953. The next prime is 78230963. The reversal of 78230962 is 26903287.
It can be written as a sum of positive squares in 2 ways, for example, as 78127921 + 103041 = 8839^2 + 321^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×782309622 = 12240166830890888, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (78230963) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69039 + ... + 70162.
Almost surely, 278230962 is an apocalyptic number.
78230962 is a deficient number, since it is larger than the sum of its proper divisors (39533930).
78230962 is a wasteful number, since it uses less digits than its factorization.
78230962 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 139484.
The product of its (nonzero) digits is 36288, while the sum is 37.
The square root of 78230962 is about 8844.8268496336. The cubic root of 78230962 is about 427.6871713252.
The spelling of 78230962 in words is "seventy-eight million, two hundred thirty thousand, nine hundred sixty-two".
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