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20047192848 = 24352926131
BaseRepresentation
bin10010101010111001…
…111110001100010000
31220202010022220200000
4102222321332030100
5312024040132343
613113132530000
71306534220244
oct225271761420
956663286600
1020047192848
118558132781
123a75920900
131b763bc3b7
14d8268c424
157c4e8ded3
hex4aae7e310

20047192848 has 180 divisors, whose sum is σ = 60267528048. Its totient is φ = 6450917760.

The previous prime is 20047192801. The next prime is 20047192849. The reversal of 20047192848 is 84829174002.

It is a super-2 number, since 2×200471928482 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20047192849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3266743 + ... + 3272873.

Almost surely, 220047192848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20047192848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30133764024).

20047192848 is an abundant number, since it is smaller than the sum of its proper divisors (40220335200).

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

20047192848 is an equidigital number, since it uses as much as digits as its factorization.

20047192848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212 (or 6165 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 20047192848 in words is "twenty billion, forty-seven million, one hundred ninety-two thousand, eight hundred forty-eight".