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447230137 = 3713986959
BaseRepresentation
bin11010101010000…
…011000010111001
31011011112122102011
4122222003002321
51403442331022
6112213405521
714040251644
oct3252030271
91134478364
10447230137
1120a4a4692
121059398a1
137186a023
144357aa5b
15293e2977
hex1aa830b9

447230137 has 8 divisors (see below), whose sum is σ = 462627200. Its totient is φ = 432007344.

The previous prime is 447230131. The next prime is 447230171. The reversal of 447230137 is 731032744.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-447230137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447230099 and 447230108.

It is not an unprimeable number, because it can be changed into a prime (447230131) 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, 38337 + ... + 48622.

It is an arithmetic number, because the mean of its divisors is an integer number (57828400).

Almost surely, 2447230137 is an apocalyptic number.

It is an amenable number.

447230137 is a deficient number, since it is larger than the sum of its proper divisors (15397063).

447230137 is a wasteful number, since it uses less digits than its factorization.

447230137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87135.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 447230137 is about 21147.8163648165. The cubic root of 447230137 is about 764.7339197379.

The spelling of 447230137 in words is "four hundred forty-seven million, two hundred thirty thousand, one hundred thirty-seven".

Divisors: 1 37 139 5143 86959 3217483 12087301 447230137