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308000297 = 11219113327
BaseRepresentation
bin10010010110111…
…011011000101001
3210110120000222102
4102112323120221
51112322002142
650321303145
710426650023
oct2226733051
9713500872
10308000297
11148949200
1287194ab5
134ba6c3c7
142cc97013
151c08e532
hex125bb629

308000297 has 12 divisors (see below), whose sum is σ = 340343808. Its totient is φ = 278513400.

The previous prime is 308000267. The next prime is 308000311. The reversal of 308000297 is 792000803.

It is not a de Polignac number, because 308000297 - 26 = 308000233 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (308000267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16448 + ... + 29774.

It is an arithmetic number, because the mean of its divisors is an integer number (28361984).

Almost surely, 2308000297 is an apocalyptic number.

It is an amenable number.

308000297 is a deficient number, since it is larger than the sum of its proper divisors (32343511).

308000297 is a wasteful number, since it uses less digits than its factorization.

308000297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540 (or 13529 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 308000297 is about 17549.9372363550. The cubic root of 308000297 is about 675.3315587401.

The spelling of 308000297 in words is "three hundred eight million, two hundred ninety-seven", and thus it is an aban number.

Divisors: 1 11 121 191 2101 13327 23111 146597 1612567 2545457 28000027 308000297