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989224 = 23123653
BaseRepresentation
bin11110001100000101000
31212020221221
43301200220
5223123344
633111424
711260015
oct3614050
91766857
10989224
11616245
123b8574
13288352
141ba70c
15148184
hexf1828

989224 has 8 divisors (see below), whose sum is σ = 1854810. Its totient is φ = 494608.

The previous prime is 989173. The next prime is 989231. The reversal of 989224 is 422989.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 232324 = 870^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 989224.

It is an unprimeable number.

989224 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 as a sum of consecutive naturals, namely, 61819 + ... + 61834.

2989224 is an apocalyptic number.

It is an amenable number.

989224 is a deficient number, since it is larger than the sum of its proper divisors (865586).

989224 is a wasteful number, since it uses less digits than its factorization.

989224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123659 (or 123655 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 989224 is about 994.5974059890. The cubic root of 989224 is about 99.6395019734.

The spelling of 989224 in words is "nine hundred eighty-nine thousand, two hundred twenty-four".

Divisors: 1 2 4 8 123653 247306 494612 989224