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57492642493440 = 2103257211831672
BaseRepresentation
bin11010001001010000011001…
…00010000111010000000000
321112120020120002212220011200
431010220030202013100000
530013424412434242230
6322135431053141200
715052464163661400
oct1504501442072000
9245506502786150
1057492642493440
11173565469482a0
12654656178a800
1326106c0aac59b
14102a931844800
1569a7b00aa160
hex344a0c887400

57492642493440 has 2376 divisors, whose sum is σ = 257388456360672. Its totient is φ = 11731914915840.

The previous prime is 57492642493427. The next prime is 57492642493459. The reversal of 57492642493440 is 4439424629475.

57492642493440 is a `hidden beast` number, since 5 + 7 + 4 + 9 + 264 + 24 + 9 + 344 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 344267320237 + ... + 344267320403.

Almost surely, 257492642493440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57492642493440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128694228180336).

57492642493440 is an abundant number, since it is smaller than the sum of its proper divisors (199895813867232).

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

57492642493440 is a wasteful number, since it uses less digits than its factorization.

57492642493440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 63.

The spelling of 57492642493440 in words is "fifty-seven trillion, four hundred ninety-two billion, six hundred forty-two million, four hundred ninety-three thousand, four hundred forty".