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57439483922 = 2137212372
BaseRepresentation
bin110101011111101010…
…001111100000010010
312111021001112010000102
4311133222033200102
51420114001441142
642215355252402
74102255362152
oct653752174022
9174231463012
1057439483922
11223a6100477
12b17044a102
13555512cc12
142acc7ac762
151762a71532
hexd5fa8f812

57439483922 has 18 divisors (see below), whose sum is σ = 86862936447. Its totient is φ = 28487061024.

The previous prime is 57439483909. The next prime is 57439483939. The reversal of 57439483922 is 22938493475.

It can be written as a sum of positive squares in 5 ways, for example, as 47471258641 + 9968225281 = 217879^2 + 99841^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=169469.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 46433888 + ... + 46435124.

Almost surely, 257439483922 is an apocalyptic number.

57439483922 is a deficient number, since it is larger than the sum of its proper divisors (29423452525).

57439483922 is an frugal number, since it uses more digits than its factorization.

57439483922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 1376 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 56.

The spelling of 57439483922 in words is "fifty-seven billion, four hundred thirty-nine million, four hundred eighty-three thousand, nine hundred twenty-two".

Divisors: 1 2 137 274 1237 2474 18769 37538 169469 338938 1530169 3060338 23217253 46434506 209633153 419266306 28719741961 57439483922