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5138765973 = 3211192731933
BaseRepresentation
bin1001100100100101…
…10101100010010101
3111021010111100200200
410302102311202111
541011011002343
62205525331113
7241225534665
oct46222654225
914233440620
105138765973
1121a7776a30
12bb4b66a99
1363b826333
1436a6a41a5
152012174d3
hex1324b5895

5138765973 has 24 divisors (see below), whose sum is σ = 8523634080. Its totient is φ = 2950486560.

The previous prime is 5138765963. The next prime is 5138765977. The reversal of 5138765973 is 3795678315.

5138765973 is a `hidden beast` number, since 513 + 8 + 7 + 6 + 59 + 73 = 666.

It is not a de Polignac number, because 5138765973 - 26 = 5138765909 is a prime.

It is a super-3 number, since 3×51387659733 (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138765977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1364086 + ... + 1367847.

It is an arithmetic number, because the mean of its divisors is an integer number (355151420).

Almost surely, 25138765973 is an apocalyptic number.

It is an amenable number.

5138765973 is a deficient number, since it is larger than the sum of its proper divisors (3384868107).

5138765973 is a wasteful number, since it uses less digits than its factorization.

5138765973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731969 (or 2731966 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 54.

The square root of 5138765973 is about 71685.1865659845. The cubic root of 5138765973 is about 1725.6509170469.

The spelling of 5138765973 in words is "five billion, one hundred thirty-eight million, seven hundred sixty-five thousand, nine hundred seventy-three".

Divisors: 1 3 9 11 19 33 57 99 171 209 627 1881 2731933 8195799 24587397 30051263 51906727 90153789 155720181 270461367 467160543 570973997 1712921991 5138765973