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20033213112 = 2333118431487
BaseRepresentation
bin10010101010000100…
…101001001010111000
31220201011000200002000
4102222010221022320
5312012000304422
613111513141000
71306304334063
oct225204511270
956634020060
1020033213112
118550254580
123a710ba760
131b73536273
14d8088d8da
157c3b2bcac
hex4aa1292b8

20033213112 has 64 divisors (see below), whose sum is σ = 60706713600. Its totient is φ = 6070669920.

The previous prime is 20033213107. The next prime is 20033213129. The reversal of 20033213112 is 21131233002.

20033213112 is a `hidden beast` number, since 20 + 0 + 332 + 1 + 311 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 4213368 + ... + 4218119.

It is an arithmetic number, because the mean of its divisors is an integer number (948542400).

Almost surely, 220033213112 is an apocalyptic number.

20033213112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20033213112 is an abundant number, since it is smaller than the sum of its proper divisors (40673500488).

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

20033213112 is a wasteful number, since it uses less digits than its factorization.

20033213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431513 (or 8431503 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20033213112 its reverse (21131233002), we get a palindrome (41164446114).

It can be divided in two parts, 200332 and 13112, that added together give a square (213444 = 4622).

The spelling of 20033213112 in words is "twenty billion, thirty-three million, two hundred thirteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 132 198 216 264 297 396 594 792 1188 2376 8431487 16862974 25294461 33725948 50588922 67451896 75883383 92746357 101177844 151766766 185492714 202355688 227650149 278239071 303533532 370985428 455300298 556478142 607067064 741970856 834717213 910600596 1112956284 1669434426 1821201192 2225912568 2504151639 3338868852 5008303278 6677737704 10016606556 20033213112