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455320513 = 2731166723
BaseRepresentation
bin11011001000111…
…010001111000001
31011201202200022201
4123020322033001
51413030224023
6113103033201
714166106024
oct3310721701
91151680281
10455320513
1121402004a
1210859b801
137344062b
14446851bb
1529e8ebad
hex1b23a3c1

455320513 has 4 divisors (see below), whose sum is σ = 455489968. Its totient is φ = 455151060.

The previous prime is 455320511. The next prime is 455320519. The reversal of 455320513 is 315023554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 455320513 - 21 = 455320511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455320511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80631 + ... + 86092.

It is an arithmetic number, because the mean of its divisors is an integer number (113872492).

Almost surely, 2455320513 is an apocalyptic number.

It is an amenable number.

455320513 is a deficient number, since it is larger than the sum of its proper divisors (169455).

455320513 is a wasteful number, since it uses less digits than its factorization.

455320513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169454.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 455320513 is about 21338.2406256936. The cubic root of 455320513 is about 769.3177253137.

The spelling of 455320513 in words is "four hundred fifty-five million, three hundred twenty thousand, five hundred thirteen".

Divisors: 1 2731 166723 455320513