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30303212100000 = 253557219108497
BaseRepresentation
bin1101110001111100001000…
…01100010101100110100000
310222021221212221202101001220
412320332010030111212200
512432441434244200000
6144241034202455040
76245222562615600
oct670760414254640
9128257787671056
1030303212100000
11972357a255654
123494b70504480
1313ba771885038
1476a97cd46c00
153783c94761a0
hex1b8f843159a0

30303212100000 has 864 divisors, whose sum is σ = 121747307048640. Its totient is φ = 6561838080000.

The previous prime is 30303212099971. The next prime is 30303212100011. The reversal of 30303212100000 is 121230303.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 279245752 + ... + 279354248.

It is an arithmetic number, because the mean of its divisors is an integer number (140911235010).

Almost surely, 230303212100000 is an apocalyptic number.

30303212100000 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 30303212100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60873653524320).

30303212100000 is an abundant number, since it is smaller than the sum of its proper divisors (91444094948640).

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

30303212100000 is a wasteful number, since it uses less digits than its factorization.

30303212100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108568 (or 108533 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30303212100000 its reverse (121230303), we get a palindrome (30303333330303).

The spelling of 30303212100000 in words is "thirty trillion, three hundred three billion, two hundred twelve million, one hundred thousand".