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89201240 = 23541109499
BaseRepresentation
bin1010101000100…
…01101001011000
320012211220002122
411110101221120
5140313414430
612503520412
72132124632
oct524215130
9205756078
1089201240
1146396237
1225a59108
13156324cb
14bbbda52
157c6eee5
hex5511a58

89201240 has 64 divisors (see below), whose sum is σ = 207900000. Its totient is φ = 34421760.

The previous prime is 89201237. The next prime is 89201263. The reversal of 89201240 is 4210298.

It is a super-2 number, since 2×892012402 = 15913722435075200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 178511 + ... + 179009.

Almost surely, 289201240 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 89201240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103950000).

89201240 is an abundant number, since it is smaller than the sum of its proper divisors (118698760).

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

89201240 is a wasteful number, since it uses less digits than its factorization.

89201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 89201240 is about 9444.6408084162. The cubic root of 89201240 is about 446.8107675948.

The spelling of 89201240 in words is "eighty-nine million, two hundred one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 109 164 205 218 328 410 436 499 545 820 872 998 1090 1640 1996 2180 2495 3992 4360 4469 4990 8938 9980 17876 19960 20459 22345 35752 40918 44690 54391 81836 89380 102295 108782 163672 178760 204590 217564 271955 409180 435128 543910 818360 1087820 2175640 2230031 4460062 8920124 11150155 17840248 22300310 44600620 89201240