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45000145 = 543311673
BaseRepresentation
bin1010101110101…
…0010111010001
310010200020121001
42223222113101
543010001040
64244302001
71054331521
oct253522721
9103606531
1045000145
1123446303
12130a1901
139427708
145d95681
153e3d59a
hex2aea5d1

45000145 has 16 divisors (see below), whose sum is σ = 55516032. Its totient is φ = 34997760.

The previous prime is 45000133. The next prime is 45000149. The reversal of 45000145 is 54100054.

It is not a de Polignac number, because 45000145 - 27 = 45000017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45000149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66529 + ... + 67201.

It is an arithmetic number, because the mean of its divisors is an integer number (3469752).

Almost surely, 245000145 is an apocalyptic number.

It is an amenable number.

45000145 is a deficient number, since it is larger than the sum of its proper divisors (10515887).

45000145 is a wasteful number, since it uses less digits than its factorization.

45000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 45000145 is about 6708.2147401526. The cubic root of 45000145 is about 355.6897124853.

Adding to 45000145 its reverse (54100054), we get a palindrome (99100199).

Subtracting 45000145 from its reverse (54100054), we obtain a palindrome (9099909).

The spelling of 45000145 in words is "forty-five million, one hundred forty-five", and thus it is an aban number.

Divisors: 1 5 43 215 311 673 1555 3365 13373 28939 66865 144695 209303 1046515 9000029 45000145