Base | Representation |
---|---|
bin | 1111010001011… |
… | …0011001011110 |
3 | 11110112022202220 |
4 | 3310112121132 |
5 | 112344224003 |
6 | 10204530210 |
7 | 1405312626 |
oct | 364263136 |
9 | 143468686 |
10 | 64054878 |
11 | 33180418 |
12 | 19550966 |
13 | 103697c4 |
14 | 8715886 |
15 | 5954353 |
hex | 3d1665e |
64054878 has 32 divisors (see below), whose sum is σ = 136028160. Its totient is φ = 20039040.
The previous prime is 64054873. The next prime is 64054883. The reversal of 64054878 is 87845046.
It is an interprime number because it is at equal distance from previous prime (64054873) and next prime (64054883).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64054873) 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, 49443 + ... + 50721.
It is an arithmetic number, because the mean of its divisors is an integer number (4250880).
Almost surely, 264054878 is an apocalyptic number.
64054878 is an abundant number, since it is smaller than the sum of its proper divisors (71973282).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64054878 is a wasteful number, since it uses less digits than its factorization.
64054878 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1792.
The product of its (nonzero) digits is 215040, while the sum is 42.
The square root of 64054878 is about 8003.4291400624. The cubic root of 64054878 is about 400.1142965043.
The spelling of 64054878 in words is "sixty-four million, fifty-four thousand, eight hundred seventy-eight".
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