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988220 = 22549411
BaseRepresentation
bin11110001010000111100
31212012120202
43301100330
5223110340
633103032
711254052
oct3612074
91765522
10988220
11615512
123b7a78
13287a5c
141ba1d2
15147c15
hexf143c

988220 has 12 divisors (see below), whose sum is σ = 2075304. Its totient is φ = 395280.

The previous prime is 988219. The next prime is 988231. The reversal of 988220 is 22889.

988220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a congruent number.

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, 24686 + ... + 24725.

It is an arithmetic number, because the mean of its divisors is an integer number (172942).

2988220 is an apocalyptic number.

It is an amenable number.

988220 is an abundant number, since it is smaller than the sum of its proper divisors (1087084).

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

988220 is a wasteful number, since it uses less digits than its factorization.

988220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49420 (or 49418 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 988220 is about 994.0925510233. The cubic root of 988220 is about 99.6057812916.

The spelling of 988220 in words is "nine hundred eighty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 49411 98822 197644 247055 494110 988220