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89820160 = 210553331
BaseRepresentation
bin1010101101010…
…00110000000000
320021000100002121
411112220300000
5140443221120
612525054024
72140313233
oct526506000
9207010077
1089820160
1146779241
12260b7314
13157bb131
14bd0141a
157d435aa
hex55a8c00

89820160 has 88 divisors (see below), whose sum is σ = 220191696. Its totient is φ = 35143680.

The previous prime is 89820131. The next prime is 89820161. The reversal of 89820160 is 6102898.

It is a super-2 number, since 2×898201602 = 16135322284851200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89820161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271195 + ... + 271525.

Almost surely, 289820160 is an apocalyptic number.

89820160 is a gapful number since it is divisible by the number (80) 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 89820160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110095848).

89820160 is an abundant number, since it is smaller than the sum of its proper divisors (130371536).

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

89820160 is a wasteful number, since it uses less digits than its factorization.

89820160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 89820160 is about 9477.3498405409. The cubic root of 89820160 is about 447.8417808634.

The spelling of 89820160 in words is "eighty-nine million, eight hundred twenty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 160 212 256 265 320 331 424 512 530 640 662 848 1024 1060 1280 1324 1655 1696 2120 2560 2648 3310 3392 4240 5120 5296 6620 6784 8480 10592 13240 13568 16960 17543 21184 26480 27136 33920 35086 42368 52960 54272 67840 70172 84736 87715 105920 135680 140344 169472 175430 211840 271360 280688 338944 350860 423680 561376 701720 847360 1122752 1403440 1694720 2245504 2806880 4491008 5613760 8982016 11227520 17964032 22455040 44910080 89820160