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22028080000 = 27542271213
BaseRepresentation
bin10100100000111110…
…011101001110000000
32002212011201101222211
4110200332131032000
5330103142030000
614041454111504
71406606406403
oct244076351600
962764641884
1022028080000
1193843055a3
1243291ab594
132100904084
1410cd7add3a
1588dd287ba
hex520f9d380

22028080000 has 160 divisors (see below), whose sum is σ = 55124510760. Its totient is φ = 8765184000.

The previous prime is 22028079979. The next prime is 22028080069. The reversal of 22028080000 is 8082022.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18159394 + ... + 18160606.

Almost surely, 222028080000 is an apocalyptic number.

22028080000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22028080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27562255380).

22028080000 is an abundant number, since it is smaller than the sum of its proper divisors (33096430760).

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

22028080000 is an equidigital number, since it uses as much as digits as its factorization.

22028080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 22028080000 in words is "twenty-two billion, twenty-eight million, eighty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 227 250 320 400 454 500 625 640 800 908 1000 1135 1213 1250 1600 1816 2000 2270 2426 2500 3200 3632 4000 4540 4852 5000 5675 6065 7264 8000 9080 9704 10000 11350 12130 14528 16000 18160 19408 20000 22700 24260 28375 29056 30325 36320 38816 40000 45400 48520 56750 60650 72640 77632 80000 90800 97040 113500 121300 141875 145280 151625 155264 181600 194080 227000 242600 275351 283750 303250 363200 388160 454000 485200 550702 567500 606500 726400 758125 776320 908000 970400 1101404 1135000 1213000 1376755 1516250 1816000 1940800 2202808 2270000 2426000 2753510 3032500 3632000 3881600 4405616 4540000 4852000 5507020 6065000 6883775 8811232 9080000 9704000 11014040 12130000 13767550 17622464 18160000 19408000 22028080 24260000 27535100 34418875 35244928 44056160 48520000 55070200 68837750 88112320 97040000 110140400 137675500 172094375 176224640 220280800 275351000 344188750 440561600 550702000 688377500 881123200 1101404000 1376755000 2202808000 2753510000 4405616000 5507020000 11014040000 22028080000