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297052897 = 1989971811
BaseRepresentation
bin10001101101001…
…010101011100001
3202200221211222011
4101231022223201
51102021143042
645250512521
710234623301
oct2155125341
9680854864
10297052897
11142751269
1283595741
134970855b
142b647601
151b12aa17
hex11b4aae1

297052897 has 16 divisors (see below), whose sum is σ = 319636800. Its totient is φ = 275235840.

The previous prime is 297052891. The next prime is 297052919. The reversal of 297052897 is 798250792.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-297052897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 297052897.

It is not an unprimeable number, because it can be changed into a prime (297052891) 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, 163122 + ... + 164932.

It is an arithmetic number, because the mean of its divisors is an integer number (19977300).

Almost surely, 2297052897 is an apocalyptic number.

It is an amenable number.

297052897 is a deficient number, since it is larger than the sum of its proper divisors (22583903).

297052897 is a wasteful number, since it uses less digits than its factorization.

297052897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 297052897 is about 17235.2225689139. Note that the first 3 decimals coincide. The cubic root of 297052897 is about 667.2336348783.

The spelling of 297052897 in words is "two hundred ninety-seven million, fifty-two thousand, eight hundred ninety-seven".

Divisors: 1 19 89 97 1691 1811 1843 8633 34409 161179 164027 175667 3062401 3337673 15634363 297052897