Base | Representation |
---|---|
bin | 1001011010010… |
… | …11111111110101 |
3 | 12111120022012012 |
4 | 10231023333311 |
5 | 130203020420 |
6 | 11500134005 |
7 | 1646050001 |
oct | 455137765 |
9 | 174508165 |
10 | 78954485 |
11 | 40627745 |
12 | 22537305 |
13 | 1348553c |
14 | a6b3701 |
15 | 6de8dc5 |
hex | 4b4bff5 |
78954485 has 16 divisors (see below), whose sum is σ = 98692992. Its totient is φ = 60580800.
The previous prime is 78954461. The next prime is 78954487. The reversal of 78954485 is 58445987.
It is a de Polignac number, because none of the positive numbers 2k-78954485 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78954487) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10130 + ... + 16140.
It is an arithmetic number, because the mean of its divisors is an integer number (6168312).
Almost surely, 278954485 is an apocalyptic number.
It is an amenable number.
78954485 is a deficient number, since it is larger than the sum of its proper divisors (19738507).
78954485 is a wasteful number, since it uses less digits than its factorization.
78954485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6124.
The product of its digits is 1612800, while the sum is 50.
The square root of 78954485 is about 8885.6336296293. The cubic root of 78954485 is about 429.0016228207.
The spelling of 78954485 in words is "seventy-eight million, nine hundred fifty-four thousand, four hundred eighty-five".
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