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200793897 = 342478937
BaseRepresentation
bin10111111011111…
…01111100101001
3111222211101110000
423331331330221
5402400401042
631531413213
74655501643
oct1375757451
9458741400
10200793897
11a3385477
12572b4209
13327a4775
141c94b893
151296474c
hexbf7df29

200793897 has 10 divisors (see below), whose sum is σ = 299951498. Its totient is φ = 133862544.

The previous prime is 200793871. The next prime is 200793949. The reversal of 200793897 is 798397002.

It can be written as a sum of positive squares in only one way, i.e., 126765081 + 74028816 = 11259^2 + 8604^2 .

It is not a de Polignac number, because 200793897 - 214 = 200777513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200793497) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1239388 + ... + 1239549.

Almost surely, 2200793897 is an apocalyptic number.

200793897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

200793897 is a deficient number, since it is larger than the sum of its proper divisors (99157601).

200793897 is an equidigital number, since it uses as much as digits as its factorization.

200793897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478949 (or 2478940 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 200793897 is about 14170.1763221210. The cubic root of 200793897 is about 585.5763156825.

The spelling of 200793897 in words is "two hundred million, seven hundred ninety-three thousand, eight hundred ninety-seven".

Divisors: 1 3 9 27 81 2478937 7436811 22310433 66931299 200793897