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213864204314880 = 2832571731109137337
BaseRepresentation
bin110000101000001000100011…
…111011011010100100000000
31001001020012220010000110100200
4300220020203323122210000
5211012422342301034010
62034503505323445200
763022115231500560
oct6050104373324400
91031205803013320
10213864204314880
11621643329a8899
121bba0395386800
1392444006aa812
143ab5122da0da0
1519ad1733edcc0
hexc28223eda900

213864204314880 has 3456 divisors, whose sum is σ = 942359135477760. Its totient is φ = 43663207956480.

The previous prime is 213864204314869. The next prime is 213864204314899. The reversal of 213864204314880 is 88413402468312.

213864204314880 is a `hidden beast` number, since 2 + 1 + 3 + 86 + 42 + 0 + 43 + 1 + 488 + 0 = 666.

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, 634611882072 + ... + 634611882408.

It is an arithmetic number, because the mean of its divisors is an integer number (272673360960).

Almost surely, 2213864204314880 is an apocalyptic number.

213864204314880 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 213864204314880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471179567738880).

213864204314880 is an abundant number, since it is smaller than the sum of its proper divisors (728494931162880).

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

213864204314880 is a wasteful number, since it uses less digits than its factorization.

213864204314880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 213864204314880 in words is "two hundred thirteen trillion, eight hundred sixty-four billion, two hundred four million, three hundred fourteen thousand, eight hundred eighty".