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5206568381 = 71150364661
BaseRepresentation
bin1001101100101010…
…11110110110111101
3111102212002002002222
410312111132312331
541130340142011
62220350455125
7243011046440
oct46625366675
914385062088
105206568381
112231a76983
1210138044a5
1364c8a57c1
143756b3657
1520715bddb
hex13655edbd

5206568381 has 8 divisors (see below), whose sum is σ = 5950973184. Its totient is φ = 4462315920.

The previous prime is 5206568369. The next prime is 5206568399. The reversal of 5206568381 is 1838656025.

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 5206568381 - 26 = 5206568317 is a prime.

It is a super-2 number, since 2×52065683812 = 54216708612057922322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5206568681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48191 + ... + 112851.

It is an arithmetic number, because the mean of its divisors is an integer number (743871648).

Almost surely, 25206568381 is an apocalyptic number.

It is an amenable number.

5206568381 is a deficient number, since it is larger than the sum of its proper divisors (744404803).

5206568381 is a wasteful number, since it uses less digits than its factorization.

5206568381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76171.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 5206568381 is about 72156.5546641468. The cubic root of 5206568381 is about 1733.2073638196.

The spelling of 5206568381 in words is "five billion, two hundred six million, five hundred sixty-eight thousand, three hundred eighty-one".

Divisors: 1 7 11503 64661 80521 452627 743795483 5206568381