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97805697024 = 21537891597
BaseRepresentation
bin101101100010110101…
…1001000000000000000
3100100110020200012110010
41123011223020000000
53100301224301044
6112533055304520
710031500464510
oct1330553100000
9310406605403
1097805697024
113852a847872
1216b56b1b140
1392b9024209
144a3b867840
152826795bb9
hex16c5ac8000

97805697024 has 256 divisors, whose sum is σ = 301607798400. Its totient is φ = 27613200384.

The previous prime is 97805697023. The next prime is 97805697089. The reversal of 97805697024 is 42079650879.

It is a tau number, because it is divible by the number of its divisors (256).

It is not an unprimeable number, because it can be changed into a prime (97805697023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61242594 + ... + 61244190.

Almost surely, 297805697024 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 97805697024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150803899200).

97805697024 is an abundant number, since it is smaller than the sum of its proper divisors (203802101376).

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

97805697024 is an equidigital number, since it uses as much as digits as its factorization.

97805697024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 97805697024 in words is "ninety-seven billion, eight hundred five million, six hundred ninety-seven thousand, twenty-four".