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980631288 = 2332713229397
BaseRepresentation
bin111010011100110…
…011111011111000
32112100020020020100
4322130303323320
54002020200123
6241150155400
733205141230
oct7234637370
92470206210
10980631288
114635a488a
122344b2b60
13128218200
1494348cc0
155b157643
hex3a733ef8

980631288 has 288 divisors, whose sum is σ = 3408631200. Its totient is φ = 249080832.

The previous prime is 980631257. The next prime is 980631299. The reversal of 980631288 is 882136089.

980631288 is a `hidden beast` number, since 9 + 8 + 0 + 631 + 2 + 8 + 8 = 666.

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 71 ways as a sum of consecutive naturals, for example, 2469906 + ... + 2470302.

It is an arithmetic number, because the mean of its divisors is an integer number (11835525).

Almost surely, 2980631288 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 980631288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704315600).

980631288 is an abundant number, since it is smaller than the sum of its proper divisors (2427999912).

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

980631288 is a wasteful number, since it uses less digits than its factorization.

980631288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 980631288 is about 31315.0329394685. The cubic root of 980631288 is about 993.5016252655.

The spelling of 980631288 in words is "nine hundred eighty million, six hundred thirty-one thousand, two hundred eighty-eight".