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89448 = 2333727
BaseRepresentation
bin10101110101101000
311112200220
4111311220
510330243
61530040
7521532
oct256550
9145626
1089448
1161227
1243920
1331938
1424852
151b783
hex15d68

89448 has 16 divisors (see below), whose sum is σ = 223680. Its totient is φ = 29808.

The previous prime is 89443. The next prime is 89449. The reversal of 89448 is 84498.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (89443) by changing a digit.

89448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1840 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (13980).

289448 is an apocalyptic number.

It is an amenable number.

89448 is an abundant number, since it is smaller than the sum of its proper divisors (134232).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111840).

89448 is a wasteful number, since it uses less digits than its factorization.

89448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3732 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 89448 is about 299.0785849906. The cubic root of 89448 is about 44.7222396827.

Subtracting from 89448 its reverse (84498), we obtain a triangular number (4950 = T99).

The spelling of 89448 in words is "eighty-nine thousand, four hundred forty-eight".