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2052447845 = 57311891657
BaseRepresentation
bin111101001010101…
…1101111001100101
312022001001011010212
41322111131321211
513200411312340
6535355025205
7101601342650
oct17225357145
95261034125
102052447845
1196360a498
1249343b205
132692ab9a6
1415682c897
15c02c2a65
hex7a55de65

2052447845 has 16 divisors (see below), whose sum is σ = 2905586688. Its totient is φ = 1361992320.

The previous prime is 2052447829. The next prime is 2052447847. The reversal of 2052447845 is 5487442502.

It is a happy number.

It is not a de Polignac number, because 2052447845 - 24 = 2052447829 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 (2052447847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944744 + ... + 946913.

It is an arithmetic number, because the mean of its divisors is an integer number (181599168).

Almost surely, 22052447845 is an apocalyptic number.

It is an amenable number.

2052447845 is a deficient number, since it is larger than the sum of its proper divisors (853138843).

2052447845 is a wasteful number, since it uses less digits than its factorization.

2052447845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891700.

The product of its (nonzero) digits is 358400, while the sum is 41.

The square root of 2052447845 is about 45303.9495518879. The cubic root of 2052447845 is about 1270.8395145759.

The spelling of 2052447845 in words is "two billion, fifty-two million, four hundred forty-seven thousand, eight hundred forty-five".

Divisors: 1 5 7 31 35 155 217 1085 1891657 9458285 13241599 58641367 66207995 293206835 410489569 2052447845