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206512070140800 = 273352195361167233
BaseRepresentation
bin101110111101001001010110…
…100101010010001110000000
31000002012100202020111000011000
4232331021112211102032000
5204031443204424001200
62011114200232452000
761333001420233254
oct5675112645221600
91002170666430130
10206512070140800
115a88a305921676
121b1b350a54a000
138b3000a2bbb98
1438dd347ab2264
1518d1cbd633300
hexbbd256952380

206512070140800 has 3072 divisors, whose sum is σ = 832343226624000. Its totient is φ = 49831693516800.

The previous prime is 206512070140777. The next prime is 206512070141011. The reversal of 206512070140800 is 8041070215602.

206512070140800 is a `hidden beast` number, since 2 + 0 + 65 + 120 + 70 + 1 + 408 + 0 + 0 = 666.

It is a super-2 number, since 2×2065120701408002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 886317897484 + ... + 886317897716.

It is an arithmetic number, because the mean of its divisors is an integer number (270945060750).

Almost surely, 2206512070140800 is an apocalyptic number.

206512070140800 is a gapful number since it is divisible by the number (20) 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 206512070140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416171613312000).

206512070140800 is an abundant number, since it is smaller than the sum of its proper divisors (625831156483200).

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

206512070140800 is a wasteful number, since it uses less digits than its factorization.

206512070140800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 206512070140800 in words is "two hundred six trillion, five hundred twelve billion, seventy million, one hundred forty thousand, eight hundred".