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382289 = 537213
BaseRepresentation
bin1011101010101010001
3201102101212
41131111101
544213124
612105505
73151355
oct1352521
9642355
10382289
11241246
12165295
1310500b
149d465
157840e
hex5d551

382289 has 4 divisors (see below), whose sum is σ = 389556. Its totient is φ = 375024.

The previous prime is 382271. The next prime is 382303. The reversal of 382289 is 982283.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982283 = 6116103.

It can be written as a sum of positive squares in 2 ways, for example, as 297025 + 85264 = 545^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 382289 - 212 = 378193 is a prime.

It is a super-2 number, since 2×3822892 = 292289759042, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 382289.

It is not an unprimeable number, because it can be changed into a prime (382229) 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, 3554 + ... + 3659.

It is an arithmetic number, because the mean of its divisors is an integer number (97389).

2382289 is an apocalyptic number.

It is an amenable number.

382289 is a deficient number, since it is larger than the sum of its proper divisors (7267).

382289 is an equidigital number, since it uses as much as digits as its factorization.

382289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266.

The product of its digits is 6912, while the sum is 32.

The square root of 382289 is about 618.2952369217. The cubic root of 382289 is about 72.5767083467.

The spelling of 382289 in words is "three hundred eighty-two thousand, two hundred eighty-nine".

Divisors: 1 53 7213 382289