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57581706228 = 2234798475519
BaseRepresentation
bin110101101000001000…
…110001101111110100
312111121222010202100020
4311220020301233310
51420411404044403
642241435445140
74105633266354
oct655010615764
9174558122306
1057581706228
1122469410172
12b1abbb67b0
135578737927
142b03630b64
1517702b6453
hexd68231bf4

57581706228 has 12 divisors (see below), whose sum is σ = 134357314560. Its totient is φ = 19193902072.

The previous prime is 57581706197. The next prime is 57581706277. The reversal of 57581706228 is 82260718575.

57581706228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399237748 + ... + 2399237771.

It is an arithmetic number, because the mean of its divisors is an integer number (11196442880).

Almost surely, 257581706228 is an apocalyptic number.

It is an amenable number.

57581706228 is an abundant number, since it is smaller than the sum of its proper divisors (76775608332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57581706228 is a wasteful number, since it uses less digits than its factorization.

57581706228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798475526 (or 4798475524 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 57581706228 in words is "fifty-seven billion, five hundred eighty-one million, seven hundred six thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 4798475519 9596951038 14395426557 19193902076 28790853114 57581706228