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30231013113312 = 25311592771751689
BaseRepresentation
bin1101101111110101101001…
…10011000011110111100000
310222001001112021121211112220
412313322310303003313200
512430301103324111222
6144143534035551040
76240055454430204
oct667726463036740
9128031467554486
1030231013113312
1196a599a866310
123482b8115b480
1313b3a069a233b
14767290278b04
153765a0c98b5c
hex1b7eb4cc3de0

30231013113312 has 192 divisors, whose sum is σ = 88355804140800. Its totient is φ = 8973126881280.

The previous prime is 30231013113299. The next prime is 30231013113313. The reversal of 30231013113312 is 21331131013203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231013113313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16382364 + ... + 18134052.

It is an arithmetic number, because the mean of its divisors is an integer number (460186479900).

Almost surely, 230231013113312 is an apocalyptic number.

30231013113312 is a gapful number since it is divisible by the number (32) 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 30231013113312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44177902070400).

30231013113312 is an abundant number, since it is smaller than the sum of its proper divisors (58124791027488).

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

30231013113312 is a wasteful number, since it uses less digits than its factorization.

30231013113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752049 (or 1752041 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 30231013113312 its reverse (21331131013203), we get a palindrome (51562144126515).

The spelling of 30231013113312 in words is "thirty trillion, two hundred thirty-one billion, thirteen million, one hundred thirteen thousand, three hundred twelve".