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897102121 = 1758789899
BaseRepresentation
bin110101011110001…
…011000100101001
32022112001111202111
4311132023010221
53314124231441
6225004002321
731142146036
oct6536130451
92275044674
10897102121
11420433113
122105303a1
13113b20676
148720438d
1553b58081
hex3578b129

897102121 has 8 divisors (see below), whose sum is σ = 951501600. Its totient is φ = 842883648.

The previous prime is 897102109. The next prime is 897102127. The reversal of 897102121 is 121201798.

897102121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897102121 - 29 = 897101609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897102127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34971 + ... + 54928.

It is an arithmetic number, because the mean of its divisors is an integer number (118937700).

Almost surely, 2897102121 is an apocalyptic number.

It is an amenable number.

897102121 is a deficient number, since it is larger than the sum of its proper divisors (54399479).

897102121 is a wasteful number, since it uses less digits than its factorization.

897102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90503.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 897102121 is about 29951.6630756958. The cubic root of 897102121 is about 964.4520217468.

The spelling of 897102121 in words is "eight hundred ninety-seven million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 17 587 9979 89899 1528283 52770713 897102121