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897146880 = 2133572149
BaseRepresentation
bin110101011110010…
…110000000000000
32022112010210011020
4311132112000000
53314132200010
6225004545440
731142423400
oct6536260000
92275123136
10897146880
11420463803
12210552280
13113b37b56
1487216800
1553b66470
hex35796000

897146880 has 336 divisors, whose sum is σ = 3361791600. Its totient is φ = 203685888.

The previous prime is 897146869. The next prime is 897146897. The reversal of 897146880 is 88641798.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6021046 + ... + 6021194.

Almost surely, 2897146880 is an apocalyptic number.

897146880 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 897146880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680895800).

897146880 is an abundant number, since it is smaller than the sum of its proper divisors (2464644720).

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

897146880 is a wasteful number, since it uses less digits than its factorization.

897146880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 897146880 is about 29952.4102536006. The cubic root of 897146880 is about 964.4680612400.

The spelling of 897146880 in words is "eight hundred ninety-seven million, one hundred forty-six thousand, eight hundred eighty".