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2020040240020 = 2251119946140709
BaseRepresentation
bin11101011001010011110…
…001111110101110010100
321011010002002002112010221
4131121103301332232110
5231044020300140040
64143554344524124
7265641323506555
oct35312361765624
97133062075127
102020040240020
11709770064820
122875b7480644
1311864838ab6a
146dab024c32c
153782c54674a
hex1d653c7eb94

2020040240020 has 48 divisors (see below), whose sum is σ = 4650983568000. Its totient is φ = 730868814720.

The previous prime is 2020040239981. The next prime is 2020040240021. The reversal of 2020040240020 is 200420400202.

It is a junction number, because it is equal to n+sod(n) for n = 2020040239976 and 2020040240003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020040240021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23026575 + ... + 23114134.

It is an arithmetic number, because the mean of its divisors is an integer number (96895491000).

Almost surely, 22020040240020 is an apocalyptic number.

2020040240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020040240020 is an abundant number, since it is smaller than the sum of its proper divisors (2630943327980).

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

2020040240020 is a wasteful number, since it uses less digits than its factorization.

2020040240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46140928 (or 46140926 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 2020040240020 its reverse (200420400202), we get a palindrome (2220460640222).

The spelling of 2020040240020 in words is "two trillion, twenty billion, forty million, two hundred forty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 199 220 398 796 995 1990 2189 3980 4378 8756 10945 21890 43780 46140709 92281418 184562836 230703545 461407090 507547799 922814180 1015095598 2030191196 2537738995 5075477990 9182001091 10150955980 18364002182 36728004364 45910005455 91820010910 101002012001 183640021820 202004024002 404008048004 505010060005 1010020120010 2020040240020