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989120 = 26511281
BaseRepresentation
bin11110001011111000000
31212020211002
43301133000
5223122440
633111132
711256506
oct3613700
91766732
10989120
11616160
123b84a8
132882a2
141ba676
15148115
hexf17c0

989120 has 56 divisors (see below), whose sum is σ = 2578608. Its totient is φ = 358400.

The previous prime is 989119. The next prime is 989123. The reversal of 989120 is 21989.

989120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3380 + ... + 3660.

2989120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289304).

989120 is an abundant number, since it is smaller than the sum of its proper divisors (1589488).

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

989120 is a wasteful number, since it uses less digits than its factorization.

989120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 989120 is about 994.5451221538. The cubic root of 989120 is about 99.6360100540.

The spelling of 989120 in words is "nine hundred eighty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 160 176 220 281 320 352 440 562 704 880 1124 1405 1760 2248 2810 3091 3520 4496 5620 6182 8992 11240 12364 15455 17984 22480 24728 30910 44960 49456 61820 89920 98912 123640 197824 247280 494560 989120