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382867489 = 17211512
BaseRepresentation
bin10110110100100…
…001100000100001
3222200102200110101
4112310201200201
51241003224424
6101554102401
712326214514
oct2664414041
9880380411
10382867489
11187134014
12a827aa01
1361423414
1438bc4d7b
152392c344
hex16d21821

382867489 has 9 divisors (see below), whose sum is σ = 407067571. Its totient is φ = 360032800.

The previous prime is 382867481. The next prime is 382867519. The reversal of 382867489 is 984768283.

The square root of 382867489 is 19567.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 298080225 + 84787264 = 17265^2 + 9208^2 .

It is not a de Polignac number, because 382867489 - 23 = 382867481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (382867481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 332064 + ... + 333214.

Almost surely, 2382867489 is an apocalyptic number.

382867489 is the 19567-th square number.

382867489 is the 9784-th centered octagonal number.

It is an amenable number.

382867489 is a deficient number, since it is larger than the sum of its proper divisors (24200082).

382867489 is an frugal number, since it uses more digits than its factorization.

382867489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336 (or 1168 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The cubic root of 382867489 is about 726.1329817595.

It can be divided in two parts, 3828 and 67489, that added together give a palindrome (71317).

The spelling of 382867489 in words is "three hundred eighty-two million, eight hundred sixty-seven thousand, four hundred eighty-nine".

Divisors: 1 17 289 1151 19567 332639 1324801 22521617 382867489