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201240203 = 1738930431
BaseRepresentation
bin10111111111010…
…10111010001011
3112000200001122212
423333222322023
5403004141303
631545135335
74662341063
oct1377527213
9460601585
10201240203
11a365a81a
125748a54b
13328cc958
141ca263a3
1512a01ad8
hexbfeae8b

201240203 has 8 divisors (see below), whose sum is σ = 213632640. Its totient is φ = 188909440.

The previous prime is 201240197. The next prime is 201240211. The reversal of 201240203 is 302042102.

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

It is not a de Polignac number, because 201240203 - 216 = 201174667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201240233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8603 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (26704080).

Almost surely, 2201240203 is an apocalyptic number.

201240203 is a deficient number, since it is larger than the sum of its proper divisors (12392437).

201240203 is a wasteful number, since it uses less digits than its factorization.

201240203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30837.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 201240203 is about 14185.9156560301. The cubic root of 201240203 is about 586.0098494930.

Adding to 201240203 its reverse (302042102), we get a palindrome (503282305).

The spelling of 201240203 in words is "two hundred one million, two hundred forty thousand, two hundred three".

Divisors: 1 17 389 6613 30431 517327 11837659 201240203