Base | Representation |
---|---|
bin | 1001011010000… |
… | …10001000100111 |
3 | 12111111020202222 |
4 | 10231002020213 |
5 | 130200222322 |
6 | 11455222555 |
7 | 1645521140 |
oct | 455021047 |
9 | 174436688 |
10 | 78914087 |
11 | 405aa35a |
12 | 22517a5b |
13 | 13470035 |
14 | a6a2ac7 |
15 | 6ddbe42 |
hex | 4b42227 |
78914087 has 16 divisors (see below), whose sum is σ = 95385600. Its totient is φ = 63776160.
The previous prime is 78914039. The next prime is 78914131. The reversal of 78914087 is 78041987.
It is not a de Polignac number, because 78914087 - 28 = 78913831 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 (78914287) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29162 + ... + 31752.
It is an arithmetic number, because the mean of its divisors is an integer number (5961600).
Almost surely, 278914087 is an apocalyptic number.
78914087 is a deficient number, since it is larger than the sum of its proper divisors (16471513).
78914087 is a wasteful number, since it uses less digits than its factorization.
78914087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2846.
The product of its (nonzero) digits is 112896, while the sum is 44.
The square root of 78914087 is about 8883.3601187839. The cubic root of 78914087 is about 428.9284424128.
The spelling of 78914087 in words is "seventy-eight million, nine hundred fourteen thousand, eighty-seven".
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