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14997792079872 = 21434719312741
BaseRepresentation
bin1101101000111111001000…
…0100011100000000000000
31222002202220220202102020000
43122033302010130000000
53431210434233023442
651521520210120000
73105361161162510
oct332176204340000
958082826672200
1014997792079872
1148625897014a8
12182280a280000
1384a393977174
1439bc7b575840
151b01d88d0d4c
hexda3f211c000

14997792079872 has 1200 divisors, whose sum is σ = 55662084065280. Its totient is φ = 3927166156800.

The previous prime is 14997792079871. The next prime is 14997792079883. The reversal of 14997792079872 is 27897029779941.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 14997792079791 and 14997792079800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14997792079871) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5471648422 + ... + 5471651162.

Almost surely, 214997792079872 is an apocalyptic number.

14997792079872 is a gapful number since it is divisible by the number (12) 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 14997792079872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27831042032640).

14997792079872 is an abundant number, since it is smaller than the sum of its proper divisors (40664291985408).

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

14997792079872 is an equidigital number, since it uses as much as digits as its factorization.

14997792079872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838 (or 2803 counting only the distinct ones).

The product of its (nonzero) digits is 2016379008, while the sum is 81.

The spelling of 14997792079872 in words is "fourteen trillion, nine hundred ninety-seven billion, seven hundred ninety-two million, seventy-nine thousand, eight hundred seventy-two".