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45024020 = 2252251201
BaseRepresentation
bin1010101111000…
…0001100010100
310010201110100022
42223300030110
543011232040
64245004312
71054461236
oct253601424
9103643308
1045024020
1123462238
12130b3698
139435542
145da0256
153e456b5
hex2af0314

45024020 has 12 divisors (see below), whose sum is σ = 94550484. Its totient is φ = 18009600.

The previous prime is 45024013. The next prime is 45024029. The reversal of 45024020 is 2042054.

It can be written as a sum of positive squares in 2 ways, for example, as 27164944 + 17859076 = 5212^2 + 4226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45024020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45024029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125581 + ... + 1125620.

It is an arithmetic number, because the mean of its divisors is an integer number (7879207).

Almost surely, 245024020 is an apocalyptic number.

It is an amenable number.

45024020 is an abundant number, since it is smaller than the sum of its proper divisors (49526464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45024020 is a wasteful number, since it uses less digits than its factorization.

45024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251210 (or 2251208 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 45024020 is about 6709.9940387455. The cubic root of 45024020 is about 355.7526055455.

Adding to 45024020 its reverse (2042054), we get a palindrome (47066074).

The spelling of 45024020 in words is "forty-five million, twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 2251201 4502402 9004804 11256005 22512010 45024020