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27168232383820 = 22511594261491219
BaseRepresentation
bin1100010110101100110001…
…10101110010010101001100
310120012020221211100001121101
412023112120311302111030
512030111014442240240
6133440525203312444
75502561060660253
oct613263065622514
9116166854301541
1027168232383820
118724a899a7330
12306947607b724
131220c515a43b8
1469cd4148379a
15321a94b2239a
hex18b598d7254c

27168232383820 has 96 divisors (see below), whose sum is σ = 63309848313600. Its totient is φ = 9709611475200.

The previous prime is 27168232383767. The next prime is 27168232383829. The reversal of 27168232383820 is 2838323286172.

It is a super-2 number, since 2×271682323838202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (27168232383829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55062171 + ... + 55553389.

It is an arithmetic number, because the mean of its divisors is an integer number (659477586600).

Almost surely, 227168232383820 is an apocalyptic number.

27168232383820 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 27168232383820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31654924156800).

27168232383820 is an abundant number, since it is smaller than the sum of its proper divisors (36141615929780).

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

27168232383820 is a wasteful number, since it uses less digits than its factorization.

27168232383820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495559 (or 495557 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 27168232383820 in words is "twenty-seven trillion, one hundred sixty-eight billion, two hundred thirty-two million, three hundred eighty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 59 110 118 220 236 295 590 649 1180 1298 2596 3245 4261 6490 8522 12980 17044 21305 42610 46871 85220 93742 187484 234355 251399 468710 491219 502798 937420 982438 1005596 1256995 1964876 2456095 2513990 2765389 4912190 5027980 5403409 5530778 9824380 10806818 11061556 13826945 21613636 27017045 27653890 28981921 54034090 55307780 57963842 108068180 115927684 144909605 289819210 318801131 579638420 637602262 1275204524 1594005655 2093084159 3188011310 4186168318 6376022620 8372336636 10465420795 20930841590 23023925749 41861683180 46047851498 92095702996 115119628745 123491965381 230239257490 246983930762 460478514980 493967861524 617459826905 1234919653810 1358411619191 2469839307620 2716823238382 5433646476764 6792058095955 13584116191910 27168232383820