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201430239 = 3109161543
BaseRepresentation
bin11000000000110…
…01010011011111
3112001000201100020
430000121103133
5403031231424
631553203223
74664062113
oct1400312337
9461021306
10201430239
11a377a57a
1257560513
13329682ba
141ca75743
1512a3d079
hexc0194df

201430239 has 8 divisors (see below), whose sum is σ = 268824192. Its totient is φ = 134161560.

The previous prime is 201430231. The next prime is 201430249. The reversal of 201430239 is 932034102.

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

It is not a de Polignac number, because 201430239 - 23 = 201430231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201430231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27499 + ... + 34044.

It is an arithmetic number, because the mean of its divisors is an integer number (33603024).

Almost surely, 2201430239 is an apocalyptic number.

201430239 is a deficient number, since it is larger than the sum of its proper divisors (67393953).

201430239 is a wasteful number, since it uses less digits than its factorization.

201430239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62637.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 201430239 is about 14192.6121274415. The cubic root of 201430239 is about 586.1942525599.

The spelling of 201430239 in words is "two hundred one million, four hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 3 1091 3273 61543 184629 67143413 201430239