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89152840 = 2357318403
BaseRepresentation
bin1010101000001…
…01110101001000
320012202102201001
411110011311020
5140310342330
612502504344
72131533550
oct524056510
9205672631
1089152840
1146362937
1225a350b4
131561647a
14bbaa160
157c609ca
hex5505d48

89152840 has 32 divisors (see below), whose sum is σ = 229250880. Its totient is φ = 30566592.

The previous prime is 89152831. The next prime is 89152841. The reversal of 89152840 is 4825198.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 89152840.

It is not an unprimeable number, because it can be changed into a prime (89152841) 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 7 ways as a sum of consecutive naturals, for example, 158922 + ... + 159481.

It is an arithmetic number, because the mean of its divisors is an integer number (7164090).

Almost surely, 289152840 is an apocalyptic number.

It is an amenable number.

89152840 is an abundant number, since it is smaller than the sum of its proper divisors (140098040).

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

89152840 is a wasteful number, since it uses less digits than its factorization.

89152840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318421 (or 318417 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 89152840 is about 9442.0781610830. The cubic root of 89152840 is about 446.7299407900.

The spelling of 89152840 in words is "eighty-nine million, one hundred fifty-two thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 318403 636806 1273612 1592015 2228821 2547224 3184030 4457642 6368060 8915284 11144105 12736120 17830568 22288210 44576420 89152840