Base | Representation |
---|---|
bin | 11001011110001… |
… | …00011001011111 |
3 | 112220001022210102 |
4 | 30233010121133 |
5 | 414144243000 |
6 | 33111331315 |
7 | 5203061060 |
oct | 1457043137 |
9 | 486038712 |
10 | 213665375 |
11 | aa676a60 |
12 | 5b680b3b |
13 | 35360321 |
14 | 2053c567 |
15 | 13b583d5 |
hex | cbc465f |
213665375 has 64 divisors (see below), whose sum is σ = 337858560. Its totient is φ = 131040000.
The previous prime is 213665369. The next prime is 213665429. The reversal of 213665375 is 573566312.
It is not a de Polignac number, because 213665375 - 28 = 213665119 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 760235 + ... + 760515.
It is an arithmetic number, because the mean of its divisors is an integer number (5279040).
Almost surely, 2213665375 is an apocalyptic number.
213665375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
213665375 is a deficient number, since it is larger than the sum of its proper divisors (124193185).
213665375 is a wasteful number, since it uses less digits than its factorization.
213665375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 393 (or 383 counting only the distinct ones).
The product of its digits is 113400, while the sum is 38.
The square root of 213665375 is about 14617.2971167723. The cubic root of 213665375 is about 597.8304749085.
The spelling of 213665375 in words is "two hundred thirteen million, six hundred sixty-five thousand, three hundred seventy-five".
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