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89242660 = 225134767109
BaseRepresentation
bin1010101000110…
…11110000100100
320012220222220201
411110123300210
5140321231120
612504440244
72132356453
oct524336044
9205828821
1089242660
1146414371
1225a79084
1315648310
14bbd0b9a
157c7c40a
hex551bc24

89242660 has 96 divisors (see below), whose sum is σ = 211115520. Its totient is φ = 31477248.

The previous prime is 89242607. The next prime is 89242667. The reversal of 89242660 is 6624298.

It is not an unprimeable number, because it can be changed into a prime (89242667) 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, 818686 + ... + 818794.

It is an arithmetic number, because the mean of its divisors is an integer number (2199120).

Almost surely, 289242660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89242660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105557760).

89242660 is an abundant number, since it is smaller than the sum of its proper divisors (121872860).

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

89242660 is a wasteful number, since it uses less digits than its factorization.

89242660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 89242660 is about 9446.8333318631. The cubic root of 89242660 is about 446.8799147584.

The spelling of 89242660 in words is "eighty-nine million, two hundred forty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 47 52 65 67 94 109 130 134 188 218 235 260 268 335 436 470 545 611 670 871 940 1090 1222 1340 1417 1742 2180 2444 2834 3055 3149 3484 4355 5123 5668 6110 6298 7085 7303 8710 10246 12220 12596 14170 14606 15745 17420 20492 25615 28340 29212 31490 36515 40937 51230 62980 66599 73030 81874 94939 102460 133198 146060 163748 189878 204685 266396 332995 343241 379756 409370 474695 665990 686482 818740 949390 1331980 1372964 1716205 1898780 3432410 4462133 6864820 8924266 17848532 22310665 44621330 89242660