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2152841271840 = 253357219312557
BaseRepresentation
bin11111010100111111010…
…101101101101000100000
321121210212012122221002000
4133110333111231220200
5240233004331144330
64325000203524000
7311352261610500
oct37247725555040
97553765587060
102152841271840
11760018856586
122a929a229600
1312802066146c
14762ab729a00
153b00124a560
hex1f53f56da20

2152841271840 has 1728 divisors, whose sum is σ = 9550807459200. Its totient is φ = 450331176960.

The previous prime is 2152841271829. The next prime is 2152841271853. The reversal of 2152841271840 is 481721482512.

2152841271840 is a `hidden beast` number, since 2 + 1 + 52 + 8 + 412 + 7 + 184 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3865064842 + ... + 3865065398.

It is an arithmetic number, because the mean of its divisors is an integer number (5527087650).

Almost surely, 22152841271840 is an apocalyptic number.

2152841271840 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 2152841271840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4775403729600).

2152841271840 is an abundant number, since it is smaller than the sum of its proper divisors (7397966187360).

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

2152841271840 is a wasteful number, since it uses less digits than its factorization.

2152841271840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 2152841271840 in words is "two trillion, one hundred fifty-two billion, eight hundred forty-one million, two hundred seventy-one thousand, eight hundred forty".