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20033330020 = 225111672931861
BaseRepresentation
bin10010101010000101…
…000101101101100100
31220201011020121102221
4102222011011231210
5312012013030040
613111515442124
71306305331654
oct225205055544
956634217387
1020033330020
1185503243a0
123a71156344
131b73577542
14d808c0364
157c3b5174a
hex4aa145b64

20033330020 has 96 divisors (see below), whose sum is σ = 46351823616. Its totient is φ = 7212633600.

The previous prime is 20033330003. The next prime is 20033330021. The reversal of 20033330020 is 2003333002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20033329976 and 20033330003.

It is not an unprimeable number, because it can be changed into a prime (20033330021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10763890 + ... + 10765750.

It is an arithmetic number, because the mean of its divisors is an integer number (482831496).

Almost surely, 220033330020 is an apocalyptic number.

20033330020 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 20033330020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23175911808).

20033330020 is an abundant number, since it is smaller than the sum of its proper divisors (26318493596).

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

20033330020 is a wasteful number, since it uses less digits than its factorization.

20033330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 20033330020 its reverse (2003333002), we get a palindrome (22036663022).

It can be divided in two parts, 20033 and 330020, that added together give a palindrome (350053).

The spelling of 20033330020 in words is "twenty billion, thirty-three million, three hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 167 220 293 334 586 668 835 1172 1465 1670 1837 1861 2930 3223 3340 3674 3722 5860 6446 7348 7444 9185 9305 12892 16115 18370 18610 20471 32230 36740 37220 40942 48931 64460 81884 97862 102355 195724 204710 244655 310787 409420 489310 538241 545273 621574 978620 1076482 1090546 1243148 1553935 2152964 2181092 2691205 2726365 3107870 3418657 5382410 5452730 5998003 6215740 6837314 10764820 10905460 11996006 13674628 17093285 23992012 29990015 34186570 59980030 68373140 91060591 119960060 182121182 364242364 455302955 910605910 1001666501 1821211820 2003333002 4006666004 5008332505 10016665010 20033330020