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31103332230000 = 243548069128489
BaseRepresentation
bin1110001001001110011110…
…00100011010001101110000
311002010110010200221100102210
413010213033010122031300
513034044111022330000
6150052401254012120
76360066365533062
oct704471704321560
9132113120840383
1031103332230000
119a019381aa838
1235a404b047040
1314480546a2844
147975a321d732
1538e108097350
hex1c49cf11a370

31103332230000 has 200 divisors, whose sum is σ = 100418928469200. Its totient is φ = 8293129472000.

The previous prime is 31103332229993. The next prime is 31103332230043. The reversal of 31103332230000 is 3223330113.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 242005756 + ... + 242134244.

It is an arithmetic number, because the mean of its divisors is an integer number (502094642346).

Almost surely, 231103332230000 is an apocalyptic number.

31103332230000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31103332230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50209464234600).

31103332230000 is an abundant number, since it is smaller than the sum of its proper divisors (69315596239200).

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

31103332230000 is a wasteful number, since it uses less digits than its factorization.

31103332230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136589 (or 136568 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31103332230000 its reverse (3223330113), we get a palindrome (31106555560113).

The spelling of 31103332230000 in words is "thirty-one trillion, one hundred three billion, three hundred thirty-two million, two hundred thirty thousand".