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27066948880 = 245439797967
BaseRepresentation
bin11001001101010100…
…001101110100010000
32120212100020110122011
4121031110031310100
5420413114331010
620233454352304
71645513161256
oct311524156420
976770213564
1027066948880
111052a650344
1252b47bb694
1327248216aa
14144aaac5d6
15a863aba8a
hex64d50dd10

27066948880 has 80 divisors (see below), whose sum is σ = 63218453760. Its totient is φ = 10777406976.

The previous prime is 27066948859. The next prime is 27066948899. The reversal of 27066948880 is 8884966072.

It is a tau number, because it is divible by the number of its divisors (80).

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, 27990157 + ... + 27991123.

It is an arithmetic number, because the mean of its divisors is an integer number (790230672).

Almost surely, 227066948880 is an apocalyptic number.

27066948880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27066948880 is an abundant number, since it is smaller than the sum of its proper divisors (36151504880).

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

27066948880 is a wasteful number, since it uses less digits than its factorization.

27066948880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 27066948880 in words is "twenty-seven billion, sixty-six million, nine hundred forty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 439 797 878 967 1594 1756 1934 2195 3188 3512 3868 3985 4390 4835 6376 7024 7736 7970 8780 9670 12752 15472 15940 17560 19340 31880 35120 38680 63760 77360 349883 424513 699766 770699 849026 1399532 1541398 1698052 1749415 2122565 2799064 3082796 3396104 3498830 3853495 4245130 5598128 6165592 6792208 6997660 7706990 8490260 12331184 13995320 15413980 16980520 27990640 30827960 33961040 61655920 338336861 676673722 1353347444 1691684305 2706694888 3383368610 5413389776 6766737220 13533474440 27066948880