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231434201 = 534743283
BaseRepresentation
bin11011100101101…
…10011111011001
3121010111002001002
431302312133121
5433221343301
634544234345
75510105165
oct1562663731
9533432032
10231434201
11109702a39
126560b9b5
1338c4201b
1422a45ca5
15154b816b
hexdcb67d9

231434201 has 4 divisors (see below), whose sum is σ = 231482832. Its totient is φ = 231385572.

The previous prime is 231434179. The next prime is 231434233. The reversal of 231434201 is 102434132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231434201 - 222 = 227239897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231434701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16295 + ... + 26988.

It is an arithmetic number, because the mean of its divisors is an integer number (57870708).

Almost surely, 2231434201 is an apocalyptic number.

It is an amenable number.

231434201 is a deficient number, since it is larger than the sum of its proper divisors (48631).

231434201 is an equidigital number, since it uses as much as digits as its factorization.

231434201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48630.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 231434201 is about 15212.9616117310. The cubic root of 231434201 is about 613.9634430590.

Adding to 231434201 its reverse (102434132), we get a palindrome (333868333).

The spelling of 231434201 in words is "two hundred thirty-one million, four hundred thirty-four thousand, two hundred one".

Divisors: 1 5347 43283 231434201