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30312102100000 = 25557291493207
BaseRepresentation
bin1101110010001100101100…
…00100111111110000100000
310222022210211111212011110011
412321012112010333300200
512433113141114200000
6144245104254214304
76245656101435130
oct671062604776040
9128283744764404
1030312102100000
119727321445196
1234968317b4394
1313bb55a5ccc76
1476b1838c6ac0
15378749b752ba
hex1b919613fc20

30312102100000 has 288 divisors, whose sum is σ = 88186953173760. Its totient is φ = 10034344320000.

The previous prime is 30312102099989. The next prime is 30312102100009. The reversal of 30312102100000 is 120121303.

It is not an unprimeable number, because it can be changed into a prime (30312102100009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19553397 + ... + 21046603.

It is an arithmetic number, because the mean of its divisors is an integer number (306204698520).

Almost surely, 230312102100000 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 30312102100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44093476586880).

30312102100000 is an abundant number, since it is smaller than the sum of its proper divisors (57874851073760).

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

30312102100000 is an equidigital number, since it uses as much as digits as its factorization.

30312102100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493278 (or 1493250 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30312102100000 its reverse (120121303), we get a palindrome (30312222221303).

The spelling of 30312102100000 in words is "thirty trillion, three hundred twelve billion, one hundred two million, one hundred thousand".