Base | Representation |
---|---|
bin | 1001011010011… |
… | …01011101010111 |
3 | 12111120121101220 |
4 | 10231031131113 |
5 | 130203213341 |
6 | 11500221423 |
7 | 1646103312 |
oct | 455153527 |
9 | 174517356 |
10 | 78960471 |
11 | 40631197 |
12 | 2253a873 |
13 | 13488195 |
14 | a6b5979 |
15 | 6deaa66 |
hex | 4b4d757 |
78960471 has 8 divisors (see below), whose sum is σ = 105352944. Its totient is φ = 52604160.
The previous prime is 78960463. The next prime is 78960499. The reversal of 78960471 is 17406987.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 78960471 - 23 = 78960463 is a prime.
It is a super-3 number, since 3×789604713 (a number of 25 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78960451) 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, 3450 + ... + 13031.
It is an arithmetic number, because the mean of its divisors is an integer number (13169118).
Almost surely, 278960471 is an apocalyptic number.
78960471 is a deficient number, since it is larger than the sum of its proper divisors (26392473).
78960471 is a wasteful number, since it uses less digits than its factorization.
78960471 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18081.
The product of its (nonzero) digits is 84672, while the sum is 42.
The square root of 78960471 is about 8885.9704591001. The cubic root of 78960471 is about 429.0124642517.
The spelling of 78960471 in words is "seventy-eight million, nine hundred sixty thousand, four hundred seventy-one".
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