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27450086400 = 21032521110831
BaseRepresentation
bin11001100100001001…
…110001010000000000
32121212001011212111200
4121210021301100000
5422204210231100
620335502341200
71661144612262
oct314411612000
977761155450
1027450086400
1110706949220
1253a0b8a800
13278600a999
141485923b32
15aa9d3de00
hex664271400

27450086400 has 396 divisors, whose sum is σ = 107229130944. Its totient is φ = 6653952000.

The previous prime is 27450086383. The next prime is 27450086401. The reversal of 27450086400 is 468005472.

27450086400 is a `hidden beast` number, since 2 + 7 + 4 + 5 + 0 + 0 + 8 + 640 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (396).

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 (27450086401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2528985 + ... + 2539815.

Almost surely, 227450086400 is an apocalyptic number.

27450086400 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 27450086400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53614565472).

27450086400 is an abundant number, since it is smaller than the sum of its proper divisors (79779044544).

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

27450086400 is a wasteful number, since it uses less digits than its factorization.

27450086400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10878 (or 10852 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 27450086400 in words is "twenty-seven billion, four hundred fifty million, eighty-six thousand, four hundred".