Base | Representation |
---|---|
bin | 11111000011011… |
… | …11111010011000 |
3 | 200011012001000020 |
4 | 33201233322120 |
5 | 1013142131430 |
6 | 41503310440 |
7 | 6312154332 |
oct | 1741577230 |
9 | 604161006 |
10 | 260505240 |
11 | 124059496 |
12 | 732ab420 |
13 | 41c80218 |
14 | 26852452 |
15 | 17d0bb10 |
hex | f86fe98 |
260505240 has 32 divisors (see below), whose sum is σ = 781516080. Its totient is φ = 69468032.
The previous prime is 260505227. The next prime is 260505241. The reversal of 260505240 is 42505062.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 260505240.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (260505241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085319 + ... + 1085558.
Almost surely, 2260505240 is an apocalyptic number.
260505240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
260505240 is an abundant number, since it is smaller than the sum of its proper divisors (521010840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
260505240 is a wasteful number, since it uses less digits than its factorization.
260505240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2170891 (or 2170887 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 260505240 is about 16140.1747202439. The cubic root of 260505240 is about 638.6635850075.
The spelling of 260505240 in words is "two hundred sixty million, five hundred five thousand, two hundred forty".
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