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20267052120 = 233457893609
BaseRepresentation
bin10010111000000000…
…101010110001011000
31221022110000220220000
4102320000222301120
5313001331131440
613151025133000
71315144046340
oct227000526130
957273026800
1020267052120
11866024a257
123b1748a160
131bacb0aa43
14da395dd20
157d941c730
hex4b802ac58

20267052120 has 160 divisors (see below), whose sum is σ = 77851303200. Its totient is φ = 4632463872.

The previous prime is 20267052101. The next prime is 20267052137. The reversal of 20267052120 is 2125076202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 424125 + ... + 469484.

It is an arithmetic number, because the mean of its divisors is an integer number (486570645).

Almost surely, 220267052120 is an apocalyptic number.

20267052120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20267052120 is an abundant number, since it is smaller than the sum of its proper divisors (57584251080).

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

20267052120 is a wasteful number, since it uses less digits than its factorization.

20267052120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893639 (or 893626 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 20267052120 in words is "twenty billion, two hundred sixty-seven million, fifty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 81 84 90 105 108 120 126 135 140 162 168 180 189 210 216 252 270 280 315 324 360 378 405 420 504 540 567 630 648 756 810 840 945 1080 1134 1260 1512 1620 1890 2268 2520 2835 3240 3780 4536 5670 7560 11340 22680 893609 1787218 2680827 3574436 4468045 5361654 6255263 7148872 8042481 8936090 10723308 12510526 13404135 16084962 17872180 18765789 21446616 24127443 25021052 26808270 31276315 32169924 35744360 37531578 40212405 48254886 50042104 53616540 56297367 62552630 64339848 72382329 75063156 80424810 93828945 96509772 107233080 112594734 120637215 125105260 144764658 150126312 160849620 168892101 187657890 193019544 225189468 241274430 250210520 281486835 289529316 321699240 337784202 361911645 375315780 450378936 482548860 506676303 562973670 579058632 675568404 723823290 750631560 844460505 965097720 1013352606 1125947340 1351136808 1447646580 1688921010 2026705212 2251894680 2533381515 2895293160 3377842020 4053410424 5066763030 6755684040 10133526060 20267052120