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382126213 = 754589459
BaseRepresentation
bin10110110001101…
…100100010000101
3222122001000121201
4112301230202011
51240311014323
6101530142501
712320006410
oct2661544205
9878030551
10382126213
11186778097
12a7b81a31
1361223bb1
1438a70b77
15238328ad
hex16c6c885

382126213 has 4 divisors (see below), whose sum is σ = 436715680. Its totient is φ = 327536748.

The previous prime is 382126183. The next prime is 382126223. The reversal of 382126213 is 312621283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312621283 = 1324047791.

It is not a de Polignac number, because 382126213 - 221 = 380029061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382126223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27294723 + ... + 27294736.

It is an arithmetic number, because the mean of its divisors is an integer number (109178920).

Almost surely, 2382126213 is an apocalyptic number.

It is an amenable number.

382126213 is a deficient number, since it is larger than the sum of its proper divisors (54589467).

382126213 is an equidigital number, since it uses as much as digits as its factorization.

382126213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54589466.

The product of its digits is 3456, while the sum is 28.

The square root of 382126213 is about 19548.0488284637. The cubic root of 382126213 is about 725.6640530196.

Adding to 382126213 its reverse (312621283), we get a palindrome (694747496).

The spelling of 382126213 in words is "three hundred eighty-two million, one hundred twenty-six thousand, two hundred thirteen".

Divisors: 1 7 54589459 382126213