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57472727785 = 5111044958687
BaseRepresentation
bin110101100001101001…
…000011101011101001
312111100101002002000121
4311201221003223221
51420201004242120
642222544003241
74103141061064
oct654151035351
9174311062017
1057472727785
1122412947040
12b17b600521
13555bc9c545
142ad2d838db
15176593b5aa
hexd61a43ae9

57472727785 has 8 divisors (see below), whose sum is σ = 75237025536. Its totient is φ = 41798347440.

The previous prime is 57472727633. The next prime is 57472727801. The reversal of 57472727785 is 58772727475.

It is a happy number.

57472727785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57472727785 - 219 = 57472203497 is a prime.

It is a super-2 number, since 2×574727277852 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522479289 + ... + 522479398.

It is an arithmetic number, because the mean of its divisors is an integer number (9404628192).

Almost surely, 257472727785 is an apocalyptic number.

57472727785 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57472727785 is a deficient number, since it is larger than the sum of its proper divisors (17764297751).

57472727785 is a wasteful number, since it uses less digits than its factorization.

57472727785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044958703.

The product of its digits is 53782400, while the sum is 61.

The spelling of 57472727785 in words is "fifty-seven billion, four hundred seventy-two million, seven hundred twenty-seven thousand, seven hundred eighty-five".

Divisors: 1 5 11 55 1044958687 5224793435 11494545557 57472727785