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2145053023 = 34711715279
BaseRepresentation
bin111111111011010…
…1110100101011111
312112111021222120021
41333312232211133
513343113144043
6552503533011
7104104435621
oct17766564537
95474258507
102145053023
11a009100a3
124ba45a167
13282533659
14164c56c11
15c84b63ed
hex7fdae95f

2145053023 has 8 divisors (see below), whose sum is σ = 2153479680. Its totient is φ = 2136639960.

The previous prime is 2145053017. The next prime is 2145053041. The reversal of 2145053023 is 3203505412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145053023 - 213 = 2145044831 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 (2145053723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403698 + ... + 408976.

It is an arithmetic number, because the mean of its divisors is an integer number (269184960).

Almost surely, 22145053023 is an apocalyptic number.

2145053023 is a deficient number, since it is larger than the sum of its proper divisors (8426657).

2145053023 is a wasteful number, since it uses less digits than its factorization.

2145053023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6797.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2145053023 is about 46314.7171318146. The cubic root of 2145053023 is about 1289.6722166607.

Adding to 2145053023 its reverse (3203505412), we get a palindrome (5348558435).

The spelling of 2145053023 in words is "two billion, one hundred forty-five million, fifty-three thousand, twenty-three".

Divisors: 1 347 1171 5279 406337 1831813 6181709 2145053023