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206880480 = 2535517313
BaseRepresentation
bin11000101010010…
…11111011100000
3112102021121200000
430111023323200
5410430133410
632310100000
75061312042
oct1425137340
9472247600
10206880480
11a6862404
125934a600
1333b25cb1
141d693a92
1513267dc0
hexc54bee0

206880480 has 288 divisors, whose sum is σ = 777669984. Its totient is φ = 51757056.

The previous prime is 206880409. The next prime is 206880521. The reversal of 206880480 is 84088602.

206880480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

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 47 ways as a sum of consecutive naturals, for example, 660804 + ... + 661116.

It is an arithmetic number, because the mean of its divisors is an integer number (2700243).

Almost surely, 2206880480 is an apocalyptic number.

206880480 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 206880480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388834992).

206880480 is an abundant number, since it is smaller than the sum of its proper divisors (570789504).

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

206880480 is a wasteful number, since it uses less digits than its factorization.

206880480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 206880480 is about 14383.3403630728. The cubic root of 206880480 is about 591.4342964609.

The spelling of 206880480 in words is "two hundred six million, eight hundred eighty thousand, four hundred eighty".