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57085678387200 = 216352171941877
BaseRepresentation
bin11001111101011010010111…
…00101010000000000000000
321111010100010002010021101010
430332231023211100000000
524440242432131342300
6321224444300040520
715011206220104551
oct1476551345200000
9244110102107333
1057085678387200
111720999a2578a1
12649b706233140
1325b1205724b28
141014d667ca328
1568ede20d7a50
hex33eb4b950000

57085678387200 has 1632 divisors, whose sum is σ = 215761824109440. Its totient is φ = 13227157094400.

The previous prime is 57085678387163. The next prime is 57085678387291. The reversal of 57085678387200 is 278387658075.

It is a tau number, because it is divible by the number of its divisors (1632).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65091993162 + ... + 65091994038.

Almost surely, 257085678387200 is an apocalyptic number.

57085678387200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57085678387200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107880912054720).

57085678387200 is an abundant number, since it is smaller than the sum of its proper divisors (158676145722240).

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

57085678387200 is a wasteful number, since it uses less digits than its factorization.

57085678387200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 66.

The spelling of 57085678387200 in words is "fifty-seven trillion, eighty-five billion, six hundred seventy-eight million, three hundred eighty-seven thousand, two hundred".