Search a number
-
+
445305055 = 51317402991
BaseRepresentation
bin11010100010101…
…101000011011111
31011000220211200211
4122202231003133
51402444230210
6112104233251
714015013316
oct3242550337
91130824624
10445305055
112093aa308
1210516b827
1371344a20
14431d927d
152916238a
hex1a8ad0df

445305055 has 16 divisors (see below), whose sum is σ = 609323904. Its totient is φ = 309496320.

The previous prime is 445305041. The next prime is 445305083. The reversal of 445305055 is 550503544.

It is not a de Polignac number, because 445305055 - 25 = 445305023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200391 + ... + 202600.

It is an arithmetic number, because the mean of its divisors is an integer number (38082744).

Almost surely, 2445305055 is an apocalyptic number.

445305055 is a deficient number, since it is larger than the sum of its proper divisors (164018849).

445305055 is a wasteful number, since it uses less digits than its factorization.

445305055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403026.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 445305055 is about 21102.2523679346. The cubic root of 445305055 is about 763.6350873531.

Adding to 445305055 its reverse (550503544), we get a palindrome (995808599).

The spelling of 445305055 in words is "four hundred forty-five million, three hundred five thousand, fifty-five".

Divisors: 1 5 13 17 65 85 221 1105 402991 2014955 5238883 6850847 26194415 34254235 89061011 445305055