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45138383 = 172655199
BaseRepresentation
bin1010110000110…
…0000111001111
310010221021012222
42230030013033
543023412013
64251245555
71055445533
oct254140717
9103837188
1045138383
1123530154
12131498bb
139475604
145dcdbc3
153e69508
hex2b0c1cf

45138383 has 4 divisors (see below), whose sum is σ = 47793600. Its totient is φ = 42483168.

The previous prime is 45138367. The next prime is 45138389. The reversal of 45138383 is 38383154.

45138383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45138383 - 24 = 45138367 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 (45138389) 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 3 ways as a sum of consecutive naturals, for example, 1327583 + ... + 1327616.

It is an arithmetic number, because the mean of its divisors is an integer number (11948400).

Almost surely, 245138383 is an apocalyptic number.

45138383 is a deficient number, since it is larger than the sum of its proper divisors (2655217).

45138383 is a wasteful number, since it uses less digits than its factorization.

45138383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655216.

The product of its digits is 34560, while the sum is 35.

The square root of 45138383 is about 6718.5104748002. The cubic root of 45138383 is about 356.0535599885.

The spelling of 45138383 in words is "forty-five million, one hundred thirty-eight thousand, three hundred eighty-three".

Divisors: 1 17 2655199 45138383