Base | Representation |
---|---|
bin | 11001011111110… |
… | …01011111111010 |
3 | 112220110101010221 |
4 | 30233321133322 |
5 | 414223222444 |
6 | 33120130254 |
7 | 5204655142 |
oct | 1457713772 |
9 | 486411127 |
10 | 213882874 |
11 | aa805407 |
12 | 5b76698a |
13 | 3540831a |
14 | 20597922 |
15 | 13b9ca84 |
hex | cbf97fa |
213882874 has 4 divisors (see below), whose sum is σ = 320824314. Its totient is φ = 106941436.
The previous prime is 213882871. The next prime is 213882883. The reversal of 213882874 is 478288312.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 195021225 + 18861649 = 13965^2 + 4343^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 213882874.
It is not an unprimeable number, because it can be changed into a prime (213882871) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53470717 + ... + 53470720.
Almost surely, 2213882874 is an apocalyptic number.
213882874 is a deficient number, since it is larger than the sum of its proper divisors (106941440).
213882874 is a wasteful number, since it uses less digits than its factorization.
213882874 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106941439.
The product of its digits is 172032, while the sum is 43.
The square root of 213882874 is about 14624.7350061463. The cubic root of 213882874 is about 598.0332584046.
The spelling of 213882874 in words is "two hundred thirteen million, eight hundred eighty-two thousand, eight hundred seventy-four".
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