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89568020 = 225127179197
BaseRepresentation
bin1010101011010…
…11001100010100
320020112112020002
411111223030110
5140412134040
612515430432
72135213153
oct525531424
9206475202
1089568020
1146616863
1225bb5418
1315730439
14bc7759a
157ce3a15
hex556b314

89568020 has 48 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 35167104.

The previous prime is 89568013. The next prime is 89568047. The reversal of 89568020 is 2086598.

89568020 = T181 + T182 + ... + T815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454562 + ... + 454758.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 289568020 is an apocalyptic number.

It is an amenable number.

89568020 is an abundant number, since it is smaller than the sum of its proper divisors (102032620).

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

89568020 is a wasteful number, since it uses less digits than its factorization.

89568020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 89568020 is about 9464.0382501340. The cubic root of 89568020 is about 447.4223328898.

The spelling of 89568020 in words is "eighty-nine million, five hundred sixty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 127 179 197 254 358 394 508 635 716 788 895 985 1270 1790 1970 2540 3580 3940 22733 25019 35263 45466 50038 70526 90932 100076 113665 125095 141052 176315 227330 250190 352630 454660 500380 705260 4478401 8956802 17913604 22392005 44784010 89568020