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13888896589680 = 24357171427340789
BaseRepresentation
bin1100101000011100001010…
…1111110101111101110000
31211011202200002020220222120
43022013002233311331300
53310023430011332210
645312245423234240
72632303543061310
oct312070257657560
954152602226876
1013888896589680
114475280051022
121683917448980
13799942c81038
143603248dd440
15191436ee9270
hexca1c2bf5f70

13888896589680 has 320 divisors, whose sum is σ = 52137532984320. Its totient is φ = 2985760899072.

The previous prime is 13888896589643. The next prime is 13888896589681. The reversal of 13888896589680 is 8698569888831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888896589681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40584726 + ... + 40925514.

It is an arithmetic number, because the mean of its divisors is an integer number (162929790576).

Almost surely, 213888896589680 is an apocalyptic number.

13888896589680 is a gapful number since it is divisible by the number (10) 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 13888896589680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26068766492160).

13888896589680 is an abundant number, since it is smaller than the sum of its proper divisors (38248636394640).

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

13888896589680 is a wasteful number, since it uses less digits than its factorization.

13888896589680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342256 (or 342250 counting only the distinct ones).

The product of its (nonzero) digits is 11466178560, while the sum is 87.

The spelling of 13888896589680 in words is "thirteen trillion, eight hundred eighty-eight billion, eight hundred ninety-six million, five hundred eighty-nine thousand, six hundred eighty".