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54455513 = 7223211229
BaseRepresentation
bin1100111110111…
…0110011011001
310210110121220212
43033232303121
5102420034023
65223100505
71230602300
oct317566331
9123417825
1054455513
1128814262
12162a1735
13b3883c8
147337437
154ba9e78
hex33eecd9

54455513 has 24 divisors (see below), whose sum is σ = 66703680. Its totient is φ = 44241120.

The previous prime is 54455507. The next prime is 54455543. The reversal of 54455513 is 31555445.

It is not a de Polignac number, because 54455513 - 24 = 54455497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54455513.

It is not an unprimeable number, because it can be changed into a prime (54455543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237683 + ... + 237911.

It is an arithmetic number, because the mean of its divisors is an integer number (2779320).

Almost surely, 254455513 is an apocalyptic number.

It is an amenable number.

54455513 is a deficient number, since it is larger than the sum of its proper divisors (12248167).

54455513 is a wasteful number, since it uses less digits than its factorization.

54455513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 470 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 54455513 is about 7379.3978751657. The cubic root of 54455513 is about 379.0361375817.

The spelling of 54455513 in words is "fifty-four million, four hundred fifty-five thousand, five hundred thirteen".

Divisors: 1 7 23 49 161 211 229 1127 1477 1603 4853 5267 10339 11221 33971 36869 48319 237797 258083 338233 1111337 2367631 7779359 54455513