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45048049 = 291553381
BaseRepresentation
bin1010101111011…
…0000011110001
310010202200022021
42223312003301
543013014144
64245311441
71054621264
oct253660361
9103680267
1045048049
11234792a2
1213105581
139443467
145da8cdb
153e4c884
hex2af60f1

45048049 has 4 divisors (see below), whose sum is σ = 46601460. Its totient is φ = 43494640.

The previous prime is 45048037. The next prime is 45048071. The reversal of 45048049 is 94084054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 11175649 = 5820^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 45048049 - 27 = 45047921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45048019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776662 + ... + 776719.

It is an arithmetic number, because the mean of its divisors is an integer number (11650365).

Almost surely, 245048049 is an apocalyptic number.

It is an amenable number.

45048049 is a deficient number, since it is larger than the sum of its proper divisors (1553411).

45048049 is a wasteful number, since it uses less digits than its factorization.

45048049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553410.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 45048049 is about 6711.7843380133. The cubic root of 45048049 is about 355.8158818373.

The spelling of 45048049 in words is "forty-five million, forty-eight thousand, forty-nine".

Divisors: 1 29 1553381 45048049