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89332880 = 24572131753
BaseRepresentation
bin1010101001100…
…01110010010000
320020002120200012
411110301302100
5140332123010
612510414052
72133213500
oct524616220
9206076605
1089332880
114647612a
1225b01328
131567a3c0
14bc15a00
157c99005
hex5531c90

89332880 has 120 divisors (see below), whose sum is σ = 260342712. Its totient is φ = 28256256.

The previous prime is 89332879. The next prime is 89332883. The reversal of 89332880 is 8823398.

It can be written as a sum of positive squares in 4 ways, for example, as 2917264 + 86415616 = 1708^2 + 9296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89332883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50084 + ... + 51836.

Almost surely, 289332880 is an apocalyptic number.

89332880 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 89332880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130171356).

89332880 is an abundant number, since it is smaller than the sum of its proper divisors (171009832).

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

89332880 is a wasteful number, since it uses less digits than its factorization.

89332880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 89332880 is about 9451.6072707239. The cubic root of 89332880 is about 447.0304553451.

The spelling of 89332880 in words is "eighty-nine million, three hundred thirty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 49 52 56 65 70 80 91 98 104 112 130 140 182 196 208 245 260 280 364 392 455 490 520 560 637 728 784 910 980 1040 1274 1456 1753 1820 1960 2548 3185 3506 3640 3920 5096 6370 7012 7280 8765 10192 12271 12740 14024 17530 22789 24542 25480 28048 35060 45578 49084 50960 61355 70120 85897 91156 98168 113945 122710 140240 159523 171794 182312 196336 227890 245420 319046 343588 364624 429485 455780 490840 638092 687176 797615 858970 911560 981680 1116661 1276184 1374352 1595230 1717940 1823120 2233322 2552368 3190460 3435880 4466644 5583305 6380920 6871760 8933288 11166610 12761840 17866576 22333220 44666440 89332880