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57453969480 = 233553137233283
BaseRepresentation
bin110101100000100001…
…100000000001001000
312111022001210001110120
4311200201200001020
51420131204010410
642221033543240
74102522453125
oct654041400110
9174261701416
1057453969480
11224032a4706
12b175274b20
13555813235b
142ad069d74c
151763e83570
hexd60860048

57453969480 has 256 divisors, whose sum is σ = 178282840320. Its totient is φ = 14805712896.

The previous prime is 57453969467. The next prime is 57453969481. The reversal of 57453969480 is 8496935475.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (57453969481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 203017419 + ... + 203017701.

It is an arithmetic number, because the mean of its divisors is an integer number (696417345).

Almost surely, 257453969480 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 57453969480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89141420160).

57453969480 is an abundant number, since it is smaller than the sum of its proper divisors (120828870840).

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

57453969480 is a wasteful number, since it uses less digits than its factorization.

57453969480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 57453969480 in words is "fifty-seven billion, four hundred fifty-three million, nine hundred sixty-nine thousand, four hundred eighty".