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989209932 = 22382434161
BaseRepresentation
bin111010111101100…
…010010101001100
32112221101001220220
4322331202111030
54011214204212
6242054111340
733341100654
oct7275422514
92487331826
10989209932
11468424077
1223734b550
13129c2cb29
149553d364
155bc9e38c
hex3af6254c

989209932 has 12 divisors (see below), whose sum is σ = 2308156536. Its totient is φ = 329736640.

The previous prime is 989209919. The next prime is 989209961. The reversal of 989209932 is 239902989.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41217069 + ... + 41217092.

It is an arithmetic number, because the mean of its divisors is an integer number (192346378).

Almost surely, 2989209932 is an apocalyptic number.

It is an amenable number.

989209932 is an abundant number, since it is smaller than the sum of its proper divisors (1318946604).

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

989209932 is a wasteful number, since it uses less digits than its factorization.

989209932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82434168 (or 82434166 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 989209932 is about 31451.7079345463. The cubic root of 989209932 is about 996.3902963846.

The spelling of 989209932 in words is "nine hundred eighty-nine million, two hundred nine thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 82434161 164868322 247302483 329736644 494604966 989209932