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449401 = 4197113
BaseRepresentation
bin1101101101101111001
3211211110111
41231231321
5103340101
613344321
73551131
oct1555571
9754414
10449401
11287707
121980a1
13129724
14b9ac1
158d251
hex6db79

449401 has 8 divisors (see below), whose sum is σ = 469224. Its totient is φ = 430080.

The previous prime is 449399. The next prime is 449411. The reversal of 449401 is 104944.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25600 + 423801 = 160^2 + 651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(449401) divides (449401-1)4.

It is a cyclic number.

It is not a de Polignac number, because 449401 - 21 = 449399 is a prime.

It is a super-2 number, since 2×4494012 = 403922517602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449411) 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 7 ways as a sum of consecutive naturals, for example, 3921 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (58653).

2449401 is an apocalyptic number.

449401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

449401 is a deficient number, since it is larger than the sum of its proper divisors (19823).

449401 is a wasteful number, since it uses less digits than its factorization.

449401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 449401 is about 670.3737763368. The cubic root of 449401 is about 76.5969267083.

The spelling of 449401 in words is "four hundred forty-nine thousand, four hundred one".

Divisors: 1 41 97 113 3977 4633 10961 449401