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89102250 = 232531992
BaseRepresentation
bin1010100111110…
…01011110101010
320012122212022100
411103321132222
5140302233000
612501434230
72131233216
oct523713652
9205585270
1089102250
1146328926
1225a0b976
13155c9433
14bb95946
157c50a00
hex54f97aa

89102250 has 72 divisors (see below), whose sum is σ = 242149284. Its totient is φ = 23641200.

The previous prime is 89102249. The next prime is 89102257. The reversal of 89102250 is 5220198.

It can be written as a sum of positive squares in 2 ways, for example, as 60233121 + 28869129 = 7761^2 + 5373^2 .

It is not an unprimeable number, because it can be changed into a prime (89102257) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 447651 + ... + 447849.

Almost surely, 289102250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89102250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121074642).

89102250 is an abundant number, since it is smaller than the sum of its proper divisors (153047034).

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

89102250 is a wasteful number, since it uses less digits than its factorization.

89102250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 89102250 is about 9439.3988156026. The cubic root of 89102250 is about 446.6454254645.

Multiplying 89102250 by its product of nonzero digits (1440), we get a square (128307240000 = 3582002).

The spelling of 89102250 in words is "eighty-nine million, one hundred two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 125 150 199 225 250 375 398 450 597 750 995 1125 1194 1791 1990 2250 2985 3582 4975 5970 8955 9950 14925 17910 24875 29850 39601 44775 49750 74625 79202 89550 118803 149250 198005 223875 237606 356409 396010 447750 594015 712818 990025 1188030 1782045 1980050 2970075 3564090 4950125 5940150 8910225 9900250 14850375 17820450 29700750 44551125 89102250