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449299449 = 32190126261
BaseRepresentation
bin11010110001111…
…100001111111001
31011022102202222100
4122301330033321
51410010040244
6112330014013
714063660634
oct3261741771
91138382870
10449299449
11210688365
12106577309
1372112b81
1443958c1b
15296a0b69
hex1ac7c3f9

449299449 has 12 divisors (see below), whose sum is σ = 649354212. Its totient is φ = 299364000.

The previous prime is 449299447. The next prime is 449299453. The reversal of 449299449 is 944992944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15327225 + 433972224 = 3915^2 + 20832^2 .

It is not a de Polignac number, because 449299449 - 21 = 449299447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449299395 and 449299404.

It is not an unprimeable number, because it can be changed into a prime (449299447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3979 + ... + 30239.

It is an arithmetic number, because the mean of its divisors is an integer number (54112851).

Almost surely, 2449299449 is an apocalyptic number.

It is an amenable number.

449299449 is a deficient number, since it is larger than the sum of its proper divisors (200054763).

449299449 is a wasteful number, since it uses less digits than its factorization.

449299449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28168 (or 28165 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 449299449 is about 21196.6848587226. The cubic root of 449299449 is about 765.9115674600.

The spelling of 449299449 in words is "four hundred forty-nine million, two hundred ninety-nine thousand, four hundred forty-nine".

Divisors: 1 3 9 1901 5703 17109 26261 78783 236349 49922161 149766483 449299449