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8981101020672 = 2933111093311637
BaseRepresentation
bin1000001010110001001101…
…0101100000011000000000
31011210120210101001012112000
42002230103111200120000
52134121243330130142
631033505535504000
71614602025045204
oct202542325403000
934716711035460
108981101020672
112952955431250
121010720688000
13501bb66324a1
1423098ab26b04
1510894444914c
hex82b13560600

8981101020672 has 640 divisors, whose sum is σ = 29373894950400. Its totient is φ = 2686788403200.

The previous prime is 8981101020649. The next prime is 8981101020761. The reversal of 8981101020672 is 2760201011898.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5486316238 + ... + 5486317874.

It is an arithmetic number, because the mean of its divisors is an integer number (45896710860).

Almost surely, 28981101020672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8981101020672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14686947475200).

8981101020672 is an abundant number, since it is smaller than the sum of its proper divisors (20392793929728).

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

8981101020672 is a wasteful number, since it uses less digits than its factorization.

8981101020672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 8981101020672 in words is "eight trillion, nine hundred eighty-one billion, one hundred one million, twenty thousand, six hundred seventy-two".