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45311141 = 243718593
BaseRepresentation
bin1010110011011…
…0010010100101
310011021001012102
42230312102211
543044424031
64255101445
71060065311
oct254662245
9104231172
1045311141
1123638a27
1213211885
139506135
146036b41
153ea07cb
hex2b364a5

45311141 has 4 divisors (see below), whose sum is σ = 45332172. Its totient is φ = 45290112.

The previous prime is 45311129. The next prime is 45311159. The reversal of 45311141 is 14111354.

It is a happy number.

45311141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14111354 = 27055677.

It can be written as a sum of positive squares in 2 ways, for example, as 35880100 + 9431041 = 5990^2 + 3071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45311141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45311041) 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 3 ways as a sum of consecutive naturals, for example, 6860 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (11333043).

Almost surely, 245311141 is an apocalyptic number.

It is an amenable number.

45311141 is a deficient number, since it is larger than the sum of its proper divisors (21031).

45311141 is a wasteful number, since it uses less digits than its factorization.

45311141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030.

The product of its digits is 240, while the sum is 20.

The square root of 45311141 is about 6731.3550641754. The cubic root of 45311141 is about 356.5072226256.

Adding to 45311141 its reverse (14111354), we get a palindrome (59422495).

The spelling of 45311141 in words is "forty-five million, three hundred eleven thousand, one hundred forty-one".

Divisors: 1 2437 18593 45311141