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897832078080 = 28357372773259
BaseRepresentation
bin11010001000010101111…
…01100100101100000000
310011211110110110020102220
431010022331210230000
5104202230002444310
61524243001211040
7121603054513320
oct15041275445400
93154413406386
10897832078080
1131684a88aa93
1212600a190a80
13668855a9582
14316534d9280
151854c049670
hexd10af64b00

897832078080 has 576 divisors, whose sum is σ = 3378843847680. Its totient is φ = 198890422272.

The previous prime is 897832078063. The next prime is 897832078093. The reversal of 897832078080 is 80870238798.

It is a super-2 number, since 2×8978320780802 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 275491491 + ... + 275494749.

Almost surely, 2897832078080 is an apocalyptic number.

897832078080 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 897832078080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689421923840).

897832078080 is an abundant number, since it is smaller than the sum of its proper divisors (2481011769600).

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

897832078080 is a wasteful number, since it uses less digits than its factorization.

897832078080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3590 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 60.

The spelling of 897832078080 in words is "eight hundred ninety-seven billion, eight hundred thirty-two million, seventy-eight thousand, eighty".