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897281068 = 221078120807
BaseRepresentation
bin110101011110110…
…110110000101100
32022112101121020011
4311132312300230
53314200443233
6225011503004
731143522535
oct6536666054
92275347204
10897281068
11420545602
122105b7a64
13113b83c58
148724d68c
1553b910cd
hex357b6c2c

897281068 has 12 divisors (see below), whose sum is σ = 1570462992. Its totient is φ = 448577360.

The previous prime is 897281059. The next prime is 897281069. The reversal of 897281068 is 860182798.

It is a super-2 number, since 2×8972810682 = 1610226629982441248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (897281069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32721 + ... + 53527.

It is an arithmetic number, because the mean of its divisors is an integer number (130871916).

Almost surely, 2897281068 is an apocalyptic number.

It is an amenable number.

897281068 is a deficient number, since it is larger than the sum of its proper divisors (673181924).

897281068 is a wasteful number, since it uses less digits than its factorization.

897281068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31592 (or 31590 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 897281068 is about 29954.6501899121. The cubic root of 897281068 is about 964.5161446294.

The spelling of 897281068 in words is "eight hundred ninety-seven million, two hundred eighty-one thousand, sixty-eight".

Divisors: 1 2 4 10781 20807 21562 41614 43124 83228 224320267 448640534 897281068