Search a number
-
+
447230405 = 5421212461
BaseRepresentation
bin11010101010000…
…011000111000101
31011011112122210002
4122222003013011
51403442333110
6112213411045
714040252506
oct3252030705
91134478702
10447230405
1120a4a4906
12105939a85
137186a19b
144357abad
15293e2aa5
hex1aa831c5

447230405 has 8 divisors (see below), whose sum is σ = 537953784. Its totient is φ = 356932800.

The previous prime is 447230393. The next prime is 447230437. The reversal of 447230405 is 504032744.

It can be written as a sum of positive squares in 4 ways, for example, as 48469444 + 398760961 = 6962^2 + 19969^2 .

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

It is not a de Polignac number, because 447230405 - 24 = 447230389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 104126 + ... + 108335.

It is an arithmetic number, because the mean of its divisors is an integer number (67244223).

Almost surely, 2447230405 is an apocalyptic number.

It is an amenable number.

447230405 is a deficient number, since it is larger than the sum of its proper divisors (90723379).

447230405 is a wasteful number, since it uses less digits than its factorization.

447230405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212887.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 447230405 is about 21147.8227011671. The cubic root of 447230405 is about 764.7340724919.

The spelling of 447230405 in words is "four hundred forty-seven million, two hundred thirty thousand, four hundred five".

Divisors: 1 5 421 2105 212461 1062305 89446081 447230405