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445482297 = 321317972309
BaseRepresentation
bin11010100011011…
…000010100111001
31011001020211211100
4122203120110321
51403020413142
6112112122013
714016352131
oct3243302471
91131224740
10445482297
11209510497
12105236309
13713a75c0
1443243ac1
1529199b4c
hex1a8d8539

445482297 has 48 divisors (see below), whose sum is σ = 741620880. Its totient is φ = 255246336.

The previous prime is 445482293. The next prime is 445482337. The reversal of 445482297 is 792284544.

It can be written as a sum of positive squares in 8 ways, for example, as 5363856 + 440118441 = 2316^2 + 20979^2 .

It is not a de Polignac number, because 445482297 - 22 = 445482293 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (445482293) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191779 + ... + 194087.

It is an arithmetic number, because the mean of its divisors is an integer number (15450435).

Almost surely, 2445482297 is an apocalyptic number.

It is an amenable number.

445482297 is a deficient number, since it is larger than the sum of its proper divisors (296138583).

445482297 is a wasteful number, since it uses less digits than its factorization.

445482297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2439 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 445482297 is about 21106.4515492302. The cubic root of 445482297 is about 763.7363888881.

The spelling of 445482297 in words is "four hundred forty-five million, four hundred eighty-two thousand, two hundred ninety-seven".

Divisors: 1 3 9 13 17 39 51 97 117 153 221 291 663 873 1261 1649 1989 2309 3783 4947 6927 11349 14841 20781 21437 30017 39253 64311 90051 117759 192933 223973 270153 353277 510289 671919 1530867 2015757 2911649 3807541 4592601 8734947 11422623 26204841 34267869 49498033 148494099 445482297