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89473890884560 = 245713173518913691
BaseRepresentation
bin10100010110000001000011…
…011110111001101111010000
3102201210121202021222002001021
4110112001003132321233100
543211420012031301220
6514143423225245224
724563163266004220
oct2426010336715720
9381717667862037
1089473890884560
1126566733908906
12a050781033814
133ac0475913730
1418147b90c4080
15a5264b9de4aa
hex5160437b9bd0

89473890884560 has 320 divisors, whose sum is σ = 257581378736640. Its totient is φ = 28145847951360.

The previous prime is 89473890884557. The next prime is 89473890884579. The reversal of 89473890884560 is 6548809837498.

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, 6535227315 + ... + 6535241005.

It is an arithmetic number, because the mean of its divisors is an integer number (804941808552).

Almost surely, 289473890884560 is an apocalyptic number.

89473890884560 is a gapful number since it is divisible by the number (80) 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 89473890884560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128790689368320).

89473890884560 is an abundant number, since it is smaller than the sum of its proper divisors (168107487852080).

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

89473890884560 is a wasteful number, since it uses less digits than its factorization.

89473890884560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19086 (or 19080 counting only the distinct ones).

The product of its (nonzero) digits is 3344302080, while the sum is 79.

The spelling of 89473890884560 in words is "eighty-nine trillion, four hundred seventy-three billion, eight hundred ninety million, eight hundred eighty-four thousand, five hundred sixty".