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988347380 = 225397124477
BaseRepresentation
bin111010111010001…
…111101111110100
32112212202020201112
4322322033233310
54011004104010
6242023414152
733330546146
oct7272175764
92485666645
10988347380
11467995019
12236bb4358
131299ba347
1495396c96
155bb7da05
hex3ae8fbf4

988347380 has 24 divisors (see below), whose sum is σ = 2080774248. Its totient is φ = 394339968.

The previous prime is 988347379. The next prime is 988347383. The reversal of 988347380 is 83743889.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 319193956 + 669153424 = 17866^2 + 25868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988347383) 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, 54299 + ... + 70178.

It is an arithmetic number, because the mean of its divisors is an integer number (86698927).

Almost surely, 2988347380 is an apocalyptic number.

It is an amenable number.

988347380 is an abundant number, since it is smaller than the sum of its proper divisors (1092426868).

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

988347380 is a wasteful number, since it uses less digits than its factorization.

988347380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124883 (or 124881 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 988347380 is about 31437.9926203948. The cubic root of 988347380 is about 996.1006078379.

The spelling of 988347380 in words is "nine hundred eighty-eight million, three hundred forty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 397 794 1588 1985 3970 7940 124477 248954 497908 622385 1244770 2489540 49417369 98834738 197669476 247086845 494173690 988347380