Base | Representation |
---|---|
bin | 101101010011… |
… | …010111000100 |
3 | 211100100111201 |
4 | 231103113010 |
5 | 11020011110 |
6 | 1102312244 |
7 | 202641160 |
oct | 55232704 |
9 | 24310451 |
10 | 11875780 |
11 | 67814a4 |
12 | 3b88684 |
13 | 25ca5b7 |
14 | 1811ca0 |
15 | 1098b3a |
hex | b535c4 |
11875780 has 24 divisors (see below), whose sum is σ = 28502208. Its totient is φ = 4071648.
The previous prime is 11875769. The next prime is 11875789. The reversal of 11875780 is 8757811.
11875780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (11875789) 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, 42274 + ... + 42553.
It is an arithmetic number, because the mean of its divisors is an integer number (1187592).
Almost surely, 211875780 is an apocalyptic number.
11875780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
11875780 is an abundant number, since it is smaller than the sum of its proper divisors (16626428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11875780 is a wasteful number, since it uses less digits than its factorization.
11875780 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84843 (or 84841 counting only the distinct ones).
The product of its (nonzero) digits is 15680, while the sum is 37.
The square root of 11875780 is about 3446.1253604592. The cubic root of 11875780 is about 228.1501268376.
It can be divided in two parts, 1 and 1875780, that added together give a palindrome (1875781).
The spelling of 11875780 in words is "eleven million, eight hundred seventy-five thousand, seven hundred eighty".
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