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27043552861920 = 25335747333557
BaseRepresentation
bin1100010011000100100010…
…10111001001111011100000
310112202100010200211002212000
412021202101113021323200
512021040144013040140
6133303345304404000
75460555310350000
oct611422127117340
9115670120732760
1027043552861920
118687119626141
12304927b176600
131212271a7917a
14696cb4860000
1531d6e8e1ba30
hex1898915c9ee0

27043552861920 has 960 divisors, whose sum is σ = 110602999160640. Its totient is φ = 6171215081472.

The previous prime is 27043552861889. The next prime is 27043552861939. The reversal of 27043552861920 is 2916825534072.

27043552861920 is a `hidden beast` number, since 2 + 7 + 0 + 4 + 3 + 552 + 8 + 61 + 9 + 20 = 666.

It is a super-2 number, since 2×270435528619202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7602908782 + ... + 7602912338.

It is an arithmetic number, because the mean of its divisors is an integer number (115211457459).

It is a 1-persistent number, because it is pandigital, but 2⋅27043552861920 = 54087105723840 is not.

Almost surely, 227043552861920 is an apocalyptic number.

27043552861920 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 27043552861920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55301499580320).

27043552861920 is an abundant number, since it is smaller than the sum of its proper divisors (83559446298720).

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

27043552861920 is an equidigital number, since it uses as much as digits as its factorization.

27043552861920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 27043552861920 in words is "twenty-seven trillion, forty-three billion, five hundred fifty-two million, eight hundred sixty-one thousand, nine hundred twenty".