Search a number
-
+
45657621 = 331691023
BaseRepresentation
bin1010111000101…
…0111000010101
310011220122111000
42232022320111
543142020441
64310333513
71063040412
oct256127025
9104818430
1045657621
1123855279
121335a299
1395c7a59
1460c7109
15401d2b6
hex2b8ae15

45657621 has 8 divisors (see below), whose sum is σ = 67640960. Its totient is φ = 30438396.

The previous prime is 45657613. The next prime is 45657659. The reversal of 45657621 is 12675654.

It is a happy number.

45657621 is a `hidden beast` number, since 4 + 565 + 76 + 21 = 666.

45657621 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 45657621 - 23 = 45657613 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 (45657671) 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 7 ways as a sum of consecutive naturals, for example, 845485 + ... + 845538.

It is an arithmetic number, because the mean of its divisors is an integer number (8455120).

Almost surely, 245657621 is an apocalyptic number.

It is an amenable number.

45657621 is a deficient number, since it is larger than the sum of its proper divisors (21983339).

45657621 is a wasteful number, since it uses less digits than its factorization.

45657621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691032 (or 1691026 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 45657621 is about 6757.0423263437. The cubic root of 45657621 is about 357.4136156549.

The spelling of 45657621 in words is "forty-five million, six hundred fifty-seven thousand, six hundred twenty-one".

Divisors: 1 3 9 27 1691023 5073069 15219207 45657621