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206077132800 = 21533527113
BaseRepresentation
bin1011111111101100100…
…1111000000000000000
3201200220212111000111000
42333323021320000000
511334021221222200
6234400500052000
720613532504230
oct2777311700000
9650825430430
10206077132800
117a440195000
1233b32994000
1316582383246
149d8d24bcc0
155561c46300
hex2ffb278000

206077132800 has 1536 divisors, whose sum is σ = 951756940800. Its totient is φ = 42821222400.

The previous prime is 206077132787. The next prime is 206077132801. The reversal of 206077132800 is 8231770602.

206077132800 is a `hidden beast` number, since 20 + 607 + 7 + 1 + 3 + 28 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1536).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206077132801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18734284795 + ... + 18734284805.

It is an arithmetic number, because the mean of its divisors is an integer number (619633425).

Almost surely, 2206077132800 is an apocalyptic number.

206077132800 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 206077132800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475878470400).

206077132800 is an abundant number, since it is smaller than the sum of its proper divisors (745679808000).

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

206077132800 is an frugal number, since it uses more digits than its factorization.

206077132800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 206077132800 in words is "two hundred six billion, seventy-seven million, one hundred thirty-two thousand, eight hundred".