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45124431 = 3111638389
BaseRepresentation
bin1010110000100…
…0101101001111
310010220120002020
42230020231033
543022440211
64251101223
71055360052
oct254105517
9103816066
1045124431
1123520720
1213141813
13946c161
145dc8a99
153e65306
hex2b08b4f

45124431 has 16 divisors (see below), whose sum is σ = 66046080. Its totient is φ = 27177120.

The previous prime is 45124427. The next prime is 45124441. The reversal of 45124431 is 13442154.

45124431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45124431 - 22 = 45124427 is a prime.

It is a super-2 number, since 2×451244312 = 4072428546147522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45124441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (4127880).

Almost surely, 245124431 is an apocalyptic number.

45124431 is a deficient number, since it is larger than the sum of its proper divisors (20921649).

45124431 is a wasteful number, since it uses less digits than its factorization.

45124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8566.

The product of its digits is 1920, while the sum is 24.

The square root of 45124431 is about 6717.4720691641. The cubic root of 45124431 is about 356.0168715440.

Adding to 45124431 its reverse (13442154), we get a palindrome (58566585).

The spelling of 45124431 in words is "forty-five million, one hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 3 11 33 163 489 1793 5379 8389 25167 92279 276837 1367407 4102221 15041477 45124431