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31343903882980 = 225131726710957119
BaseRepresentation
bin1110010000001110100100…
…10000011011111011100100
311002222110002112221112220021
413020013102100123323210
513102014303343223410
6150355105103244524
76413344105044463
oct710072220337344
9132873075845807
1031343903882980
119a94969676357
1236227a9ba9744
131464943326370
147a50a57969da
153954d82c1eda
hex1c81d241bee4

31343903882980 has 288 divisors, whose sum is σ = 77126832921600. Its totient is φ = 10631164059648.

The previous prime is 31343903882969. The next prime is 31343903883007. The reversal of 31343903882980 is 8928830934313.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 548718861 + ... + 548775979.

It is an arithmetic number, because the mean of its divisors is an integer number (267801503200).

Almost surely, 231343903882980 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 31343903882980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38563416460800).

31343903882980 is an abundant number, since it is smaller than the sum of its proper divisors (45782929038620).

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

31343903882980 is a wasteful number, since it uses less digits than its factorization.

31343903882980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57351 (or 57332 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 31343903882980 in words is "thirty-one trillion, three hundred forty-three billion, nine hundred three million, eight hundred eighty-two thousand, nine hundred eighty".