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12020330012 = 22171923404507
BaseRepresentation
bin10110011000111011…
…11010111000011100
31011000201101000212212
423030131322320130
5144104201030022
65304433215552
7603606055625
oct131435727034
934021330785
1012020330012
115109187939
1223b57015b8
131197432212
148205d0a4c
154a54393e2
hex2cc77ae1c

12020330012 has 48 divisors (see below), whose sum is σ = 24464643840. Its totient is φ = 5125900032.

The previous prime is 12020330009. The next prime is 12020330053. The reversal of 12020330012 is 21003302021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172538 + ... + 231969.

It is an arithmetic number, because the mean of its divisors is an integer number (509680080).

Almost surely, 212020330012 is an apocalyptic number.

It is an amenable number.

12020330012 is an abundant number, since it is smaller than the sum of its proper divisors (12444313828).

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

12020330012 is a wasteful number, since it uses less digits than its factorization.

12020330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404570 (or 404568 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12020330012 its reverse (21003302021), we get a palindrome (33023632033).

The spelling of 12020330012 in words is "twelve billion, twenty million, three hundred thirty thousand, twelve".

Divisors: 1 2 4 17 19 23 34 38 46 68 76 92 323 391 437 646 782 874 1292 1564 1748 7429 14858 29716 404507 809014 1618028 6876619 7685633 9303661 13753238 15371266 18607322 27506476 30742532 37214644 130655761 158162237 176769559 261311522 316324474 353539118 522623044 632648948 707078236 3005082503 6010165006 12020330012