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53194078080 = 273351121319103
BaseRepresentation
bin110001100010100111…
…010011011110000000
312002022012001011001000
4301202213103132000
51332420140444310
640234221412000
73562125126513
oct614247233600
9162265034030
1053194078080
1120617741200
12a38670a000
135029716c60
142808a16d7a
1515b4ec34c0
hexc629d3780

53194078080 has 1536 divisors, whose sum is σ = 237025152000. Its totient is φ = 11167580160.

The previous prime is 53194078079. The next prime is 53194078109. The reversal of 53194078080 is 8087049135.

53194078080 is a `hidden beast` number, since 531 + 9 + 40 + 78 + 0 + 8 + 0 = 666.

It is a super-2 number, since 2×531940780802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 516447309 + ... + 516447411.

It is an arithmetic number, because the mean of its divisors is an integer number (154313250).

Almost surely, 253194078080 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 53194078080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118512576000).

53194078080 is an abundant number, since it is smaller than the sum of its proper divisors (183831073920).

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

53194078080 is a wasteful number, since it uses less digits than its factorization.

53194078080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 53194078080 in words is "fifty-three billion, one hundred ninety-four million, seventy-eight thousand, eighty".