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57410781321 = 3232113943319
BaseRepresentation
bin110101011101111100…
…110000000010001001
312111012001111212110010
4311131330300002021
51420034130000241
642212452142133
74101456406125
oct653574600211
9174161455403
1057410781321
1122390986813
12b162907949
13554c1c062a
142ac8a5a585
1517602a1d16
hexd5df30089

57410781321 has 16 divisors (see below), whose sum is σ = 80254448640. Its totient is φ = 36436258320.

The previous prime is 57410781301. The next prime is 57410781331. The reversal of 57410781321 is 12318701475.

It is a happy number.

It is not a de Polignac number, because 57410781321 - 27 = 57410781193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57410781321.

It is not an unprimeable number, because it can be changed into a prime (57410781301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1957101 + ... + 1986218.

It is an arithmetic number, because the mean of its divisors is an integer number (5015903040).

Almost surely, 257410781321 is an apocalyptic number.

It is an amenable number.

57410781321 is a deficient number, since it is larger than the sum of its proper divisors (22843667319).

57410781321 is a wasteful number, since it uses less digits than its factorization.

57410781321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943556.

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 57410781321 in words is "fifty-seven billion, four hundred ten million, seven hundred eighty-one thousand, three hundred twenty-one".

Divisors: 1 3 23 69 211 633 4853 14559 3943319 11829957 90696337 272089011 832040309 2496120927 19136927107 57410781321