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20050574072020 = 2255318915635917
BaseRepresentation
bin1001000111100011000110…
…10110000101100011010100
32121222211000222111120001021
410203301203112011203110
510112002033430301040
6110351035004010524
74136414626364662
oct443614326054324
977884028446037
1020050574072020
116430445389978
1222b9b28830a44
13b259b7c7193b
144d464ad05c32
1524b864d2624a
hex123c635858d4

20050574072020 has 24 divisors (see below), whose sum is σ = 42900662262024. Its totient is φ = 7868904541056.

The previous prime is 20050574072017. The next prime is 20050574072021. The reversal of 20050574072020 is 2027047505002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6063482707396 + 13987091364624 = 2462414^2 + 3739932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050574072021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9457816899 + ... + 9457819018.

It is an arithmetic number, because the mean of its divisors is an integer number (1787527594251).

Almost surely, 220050574072020 is an apocalyptic number.

20050574072020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20050574072020 is an abundant number, since it is smaller than the sum of its proper divisors (22850088190004).

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

20050574072020 is a wasteful number, since it uses less digits than its factorization.

20050574072020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18915635979 (or 18915635977 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The spelling of 20050574072020 in words is "twenty trillion, fifty billion, five hundred seventy-four million, seventy-two thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 18915635917 37831271834 75662543668 94578179585 189156359170 378312718340 1002528703601 2005057407202 4010114814404 5012643518005 10025287036010 20050574072020