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455040445 = 5178364499
BaseRepresentation
bin11011000111110…
…101110110111101
31011201020110010211
4123013311312331
51412442243240
6113053032421
714163531346
oct3307656675
91151213124
10455040445
11213949692
12108485711
1373373002
14446110cd
1529e36bea
hex1b1f5dbd

455040445 has 16 divisors (see below), whose sum is σ = 585144000. Its totient is φ = 338485504.

The previous prime is 455040437. The next prime is 455040449. The reversal of 455040445 is 544040554.

It is a happy number.

It is not a de Polignac number, because 455040445 - 23 = 455040437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455040449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25195 + ... + 39304.

It is an arithmetic number, because the mean of its divisors is an integer number (36571500).

Almost surely, 2455040445 is an apocalyptic number.

It is an amenable number.

455040445 is a deficient number, since it is larger than the sum of its proper divisors (130103555).

455040445 is a wasteful number, since it uses less digits than its factorization.

455040445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64604.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 455040445 is about 21331.6770320573. The cubic root of 455040445 is about 769.1599569854.

Adding to 455040445 its reverse (544040554), we get a palindrome (999080999).

The spelling of 455040445 in words is "four hundred fifty-five million, forty thousand, four hundred forty-five".

Divisors: 1 5 17 83 85 415 1411 7055 64499 322495 1096483 5353417 5482415 26767085 91008089 455040445