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448213 = 3971129
BaseRepresentation
bin1101101011011010101
3211202211111
41231123111
5103320323
613335021
73544513
oct1553325
9752744
10448213
11286827
12197471
1312901c
14b94b3
158cc0d
hex6d6d5

448213 has 4 divisors (see below), whose sum is σ = 449740. Its totient is φ = 446688.

The previous prime is 448207. The next prime is 448241. The reversal of 448213 is 312844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154449 + 293764 = 393^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 448213 - 29 = 447701 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 (448013) 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, 168 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (112435).

2448213 is an apocalyptic number.

It is an amenable number.

448213 is a deficient number, since it is larger than the sum of its proper divisors (1527).

448213 is a wasteful number, since it uses less digits than its factorization.

448213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526.

The product of its digits is 768, while the sum is 22.

The square root of 448213 is about 669.4871171277. The cubic root of 448213 is about 76.5293720069.

The spelling of 448213 in words is "four hundred forty-eight thousand, two hundred thirteen".

Divisors: 1 397 1129 448213