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45770231 = 133520787
BaseRepresentation
bin1010111010011…
…0010111110111
310012010100221202
42232212113313
543204121411
64313003115
71064016623
oct256462767
9105110852
1045770231
1123921941
12133b349b
1396370a0
146116183
15404183b
hex2ba65f7

45770231 has 4 divisors (see below), whose sum is σ = 49291032. Its totient is φ = 42249432.

The previous prime is 45770209. The next prime is 45770233. The reversal of 45770231 is 13207754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45770231 - 218 = 45508087 is a prime.

It is a super-2 number, since 2×457702312 = 4189828091586722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45770194 and 45770203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45770233) 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 3 ways as a sum of consecutive naturals, for example, 1760381 + ... + 1760406.

It is an arithmetic number, because the mean of its divisors is an integer number (12322758).

Almost surely, 245770231 is an apocalyptic number.

45770231 is a deficient number, since it is larger than the sum of its proper divisors (3520801).

45770231 is a wasteful number, since it uses less digits than its factorization.

45770231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520800.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 45770231 is about 6765.3699824917. The cubic root of 45770231 is about 357.7072161691.

Adding to 45770231 its reverse (13207754), we get a palindrome (58977985).

The spelling of 45770231 in words is "forty-five million, seven hundred seventy thousand, two hundred thirty-one".

Divisors: 1 13 3520787 45770231