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45780993 = 32972292
BaseRepresentation
bin1010111010100…
…1000000000001
310012010220201100
42232221000001
543204442433
64313125013
71064063166
oct256510001
9105126640
1045780993
1123929a35
12133b9769
13963bc5b
14611a06d
154044b13
hex2ba9001

45780993 has 18 divisors (see below), whose sum is σ = 67102854. Its totient is φ = 30074112.

The previous prime is 45780979. The next prime is 45780997. The reversal of 45780993 is 39908754.

It can be written as a sum of positive squares in 3 ways, for example, as 27531009 + 18249984 = 5247^2 + 4272^2 .

It is not a de Polignac number, because 45780993 - 26 = 45780929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45780997) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 199803 + ... + 200031.

Almost surely, 245780993 is an apocalyptic number.

It is an amenable number.

45780993 is a deficient number, since it is larger than the sum of its proper divisors (21321861).

45780993 is an equidigital number, since it uses as much as digits as its factorization.

45780993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 45780993 is about 6766.1653098339. The cubic root of 45780993 is about 357.7352499900.

The spelling of 45780993 in words is "forty-five million, seven hundred eighty thousand, nine hundred ninety-three".

Divisors: 1 3 9 97 229 291 687 873 2061 22213 52441 66639 157323 199917 471969 5086777 15260331 45780993