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989120318 = 23389145931
BaseRepresentation
bin111010111101001…
…100011100111110
32112221012111222212
4322331030130332
54011203322233
6242052140422
733340245464
oct7275143476
92487174885
10989120318
1146837280a
12237307712
13129bcb0c4
1495518834
155bc82a48
hex3af4c73e

989120318 has 8 divisors (see below), whose sum is σ = 1484128440. Its totient is φ = 494410840.

The previous prime is 989120257. The next prime is 989120351. The reversal of 989120318 is 813021989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9891203182 = 1956718006960842248, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66188 + ... + 79743.

It is an arithmetic number, because the mean of its divisors is an integer number (185516055).

Almost surely, 2989120318 is an apocalyptic number.

989120318 is a deficient number, since it is larger than the sum of its proper divisors (495008122).

989120318 is a wasteful number, since it uses less digits than its factorization.

989120318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149322.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 989120318 is about 31450.2832737640. The cubic root of 989120318 is about 996.3602073160.

The spelling of 989120318 in words is "nine hundred eighty-nine million, one hundred twenty thousand, three hundred eighteen".

Divisors: 1 2 3389 6778 145931 291862 494560159 989120318