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382513 = 2316631
BaseRepresentation
bin1011101011000110001
3201102201011
41131120301
544220023
612110521
73152125
oct1353061
9642634
10382513
1124142a
12165441
13105151
149d585
157850d
hex5d631

382513 has 4 divisors (see below), whose sum is σ = 399168. Its totient is φ = 365860.

The previous prime is 382511. The next prime is 382519. The reversal of 382513 is 315283.

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: 315283 = 1033061.

It is a cyclic number.

It is not a de Polignac number, because 382513 - 21 = 382511 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8293 + ... + 8338.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2382513 is an apocalyptic number.

It is an amenable number.

382513 is a deficient number, since it is larger than the sum of its proper divisors (16655).

382513 is a wasteful number, since it uses less digits than its factorization.

382513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16654.

The product of its digits is 720, while the sum is 22.

The square root of 382513 is about 618.4763536304. The cubic root of 382513 is about 72.5908808780.

Adding to 382513 its reverse (315283), we get a palindrome (697796).

The spelling of 382513 in words is "three hundred eighty-two thousand, five hundred thirteen".

Divisors: 1 23 16631 382513