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20330211120 = 2435128965717
BaseRepresentation
bin10010111011110001…
…100110011100110000
31221110211212201202020
4102323301212130300
5313114013223440
613201202551440
71316541641352
oct227361463460
957424781666
1020330211120
11869296857a
123b34668580
131bbcc2282b
14dac0c10d2
157dec463d0
hex4bbc66730

20330211120 has 80 divisors (see below), whose sum is σ = 63073507680. Its totient is φ = 5417101312.

The previous prime is 20330211113. The next prime is 20330211137. The reversal of 20330211120 is 2111203302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20330211120.

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, 276502 + ... + 342218.

It is an arithmetic number, because the mean of its divisors is an integer number (788418846).

Almost surely, 220330211120 is an apocalyptic number.

20330211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330211120 is an abundant number, since it is smaller than the sum of its proper divisors (42743296560).

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

20330211120 is a wasteful number, since it uses less digits than its factorization.

20330211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67022 (or 67016 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20330211120 its reverse (2111203302), we get a palindrome (22441414422).

The spelling of 20330211120 in words is "twenty billion, three hundred thirty million, two hundred eleven thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1289 2578 3867 5156 6445 7734 10312 12890 15468 19335 20624 25780 30936 38670 51560 61872 65717 77340 103120 131434 154680 197151 262868 309360 328585 394302 525736 657170 788604 985755 1051472 1314340 1577208 1971510 2628680 3154416 3943020 5257360 7886040 15772080 84709213 169418426 254127639 338836852 423546065 508255278 677673704 847092130 1016510556 1270638195 1355347408 1694184260 2033021112 2541276390 3388368520 4066042224 5082552780 6776737040 10165105560 20330211120