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1996430980896 = 2532111961836551
BaseRepresentation
bin11101000011010100100…
…011110011011100100000
321001212010201002220011100
4131003110203303130200
5230202142312342041
64125051524314400
7264144264225402
oct35032443633440
97055121086140
101996430980896
116aa755272a20
12282b08842a00
13116355010851
146c8b0886b72
1536de99da6b6
hex1d0d48f3720

1996430980896 has 576 divisors, whose sum is σ = 6707180712960. Its totient is φ = 556865280000.

The previous prime is 1996430980889. The next prime is 1996430980937. The reversal of 1996430980896 is 6980890346991.

1996430980896 is a `hidden beast` number, since 19 + 9 + 6 + 430 + 98 + 0 + 8 + 96 = 666.

It is a super-2 number, since 2×19964309808962 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 304748821 + ... + 304755371.

It is an arithmetic number, because the mean of its divisors is an integer number (11644410960).

Almost surely, 21996430980896 is an apocalyptic number.

1996430980896 is a gapful number since it is divisible by the number (16) 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 1996430980896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3353590356480).

1996430980896 is an abundant number, since it is smaller than the sum of its proper divisors (4710749732064).

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

1996430980896 is a wasteful number, since it uses less digits than its factorization.

1996430980896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741 (or 6730 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 72.

The spelling of 1996430980896 in words is "one trillion, nine hundred ninety-six billion, four hundred thirty million, nine hundred eighty thousand, eight hundred ninety-six".