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20000033020 = 22511181502261
BaseRepresentation
bin10010101000000110…
…000100100011111100
31220121211120221112201
4102220012010203330
5311430002024040
613104330041244
71305422322112
oct225006044374
956554527481
1020000033020
118533551910
123a61b79224
131b696b9986
14d7a2d3ab2
157c0c75a9a
hex4a81848fc

20000033020 has 48 divisors (see below), whose sum is σ = 46071488736. Its totient is φ = 7232544000.

The previous prime is 20000032967. The next prime is 20000033033. The reversal of 20000033020 is 2033000002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20000032988 and 20000033006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211311 + ... + 290950.

It is an arithmetic number, because the mean of its divisors is an integer number (959822682).

Almost surely, 220000033020 is an apocalyptic number.

20000033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000033020 is an abundant number, since it is smaller than the sum of its proper divisors (26071455716).

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

20000033020 is a wasteful number, since it uses less digits than its factorization.

20000033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502462 (or 502460 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 20000033020 its reverse (2033000002), we get a palindrome (22033033022).

The spelling of 20000033020 in words is "twenty billion, thirty-three thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 181 220 362 724 905 1810 1991 3620 3982 7964 9955 19910 39820 502261 1004522 2009044 2511305 5022610 5524871 10045220 11049742 22099484 27624355 55248710 90909241 110497420 181818482 363636964 454546205 909092410 1000001651 1818184820 2000003302 4000006604 5000008255 10000016510 20000033020