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20031341330 = 25711134314643
BaseRepresentation
bin10010101001111101…
…100000001100010010
31220201000111120110202
4102221331200030102
5312011010410310
613111405055202
71306252410020
oct225175401422
956630446422
1020031341330
11854a196250
123a70557502
131b7302c2c0
14d80523710
157c38ac3a5
hex4a9f60312

20031341330 has 128 divisors (see below), whose sum is σ = 48534183936. Its totient is φ = 5748652800.

The previous prime is 20031341329. The next prime is 20031341333. The reversal of 20031341330 is 3314313002.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20031341333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4311989 + ... + 4316631.

It is an arithmetic number, because the mean of its divisors is an integer number (379173312).

Almost surely, 220031341330 is an apocalyptic number.

20031341330 is an abundant number, since it is smaller than the sum of its proper divisors (28502842606).

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

20031341330 is a wasteful number, since it uses less digits than its factorization.

20031341330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20031341330 its reverse (3314313002), we get a palindrome (23345654332).

The spelling of 20031341330 in words is "twenty billion, thirty-one million, three hundred forty-one thousand, three hundred thirty".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 431 455 715 770 862 910 1001 1430 2002 2155 3017 4310 4643 4741 5005 5603 6034 9286 9482 10010 11206 15085 23215 23705 28015 30170 32501 33187 39221 46430 47410 51073 56030 60359 61633 65002 66374 78442 102146 120718 123266 162505 165935 196105 255365 301795 308165 325010 331870 357511 392210 422513 431431 510730 603590 616330 663949 715022 845026 862862 1327898 1787555 2001133 2112565 2157155 3319745 3575110 4002266 4225130 4314310 4647643 6639490 9295286 10005665 14007931 20011330 22012463 23238215 26014729 28015862 44024926 46476430 52029458 70039655 110062315 130073645 140079310 154087241 182103103 220124630 260147290 286162019 308174482 364206206 572324038 770436205 910515515 1430810095 1540872410 1821031030 2003134133 2861620190 4006268266 10015670665 20031341330