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38440672080000 = 273543147211521
BaseRepresentation
bin10001011110110001010101…
…00110101011000010000000
312001002220002112100021021120
420233120222212223002000
520014302444023030000
6213431222335152240
711045150455315251
oct1057305246530200
9161086075307246
1038440672080000
1111280663274343
12438a087375680
13185ac2aa39068
1496c777746b28
15469de41296a0
hex22f62a9ab080

38440672080000 has 1280 divisors, whose sum is σ = 135409391124480. Its totient is φ = 9644544000000.

The previous prime is 38440672079959. The next prime is 38440672080067. The reversal of 38440672080000 is 8027604483.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 73782479740 + ... + 73782480260.

It is an arithmetic number, because the mean of its divisors is an integer number (105788586816).

Almost surely, 238440672080000 is an apocalyptic number.

38440672080000 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 38440672080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67704695562240).

38440672080000 is an abundant number, since it is smaller than the sum of its proper divisors (96968719044480).

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

38440672080000 is a wasteful number, since it uses less digits than its factorization.

38440672080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

Adding to 38440672080000 its reverse (8027604483), we get a palindrome (38448699684483).

The spelling of 38440672080000 in words is "thirty-eight trillion, four hundred forty billion, six hundred seventy-two million, eighty thousand".