Search a number
-
+
89250020 = 22513732573
BaseRepresentation
bin1010101000111…
…01100011100100
320012221101000022
411110131203210
5140322000040
612504534312
72132420066
oct524354344
9205841008
1089250020
1146419952
1225a81398
131564b782
14bbd3736
157c7e6b5
hex551d8e4

89250020 has 24 divisors (see below), whose sum is σ = 188798904. Its totient is φ = 35438336.

The previous prime is 89249987. The next prime is 89250037. The reversal of 89250020 is 2005298.

It can be written as a sum of positive squares in 4 ways, for example, as 23104 + 89226916 = 152^2 + 9446^2 .

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 7 ways as a sum of consecutive naturals, for example, 13547 + ... + 19026.

It is an arithmetic number, because the mean of its divisors is an integer number (7866621).

Almost surely, 289250020 is an apocalyptic number.

It is an amenable number.

89250020 is an abundant number, since it is smaller than the sum of its proper divisors (99548884).

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

89250020 is a wasteful number, since it uses less digits than its factorization.

89250020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32719 (or 32717 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 89250020 is about 9447.2228723578. Note that the first 3 decimals coincide. The cubic root of 89250020 is about 446.8921994130.

The spelling of 89250020 in words is "eighty-nine million, two hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 32573 65146 130292 162865 325730 651460 4462501 8925002 17850004 22312505 44625010 89250020