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231434441 = 7231437481
BaseRepresentation
bin11011100101101…
…10100011001001
3121010111002100222
431302312203021
5433221400231
634544235425
75510105660
oct1562664311
9533432328
10231434441
11109703137
126560bb75
1338c42174
1422a45dd7
15154b827b
hexdcb68c9

231434441 has 8 divisors (see below), whose sum is σ = 275996544. Its totient is φ = 189747360.

The previous prime is 231434429. The next prime is 231434453. The reversal of 231434441 is 144434132.

It is an interprime number because it is at equal distance from previous prime (231434429) and next prime (231434453).

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

It is a cyclic number.

It is not a de Polignac number, because 231434441 - 26 = 231434377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231434441.

It is not an unprimeable number, because it can be changed into a prime (231434341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718580 + ... + 718901.

It is an arithmetic number, because the mean of its divisors is an integer number (34499568).

Almost surely, 2231434441 is an apocalyptic number.

It is an amenable number.

231434441 is a deficient number, since it is larger than the sum of its proper divisors (44562103).

231434441 is a wasteful number, since it uses less digits than its factorization.

231434441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437511.

The product of its digits is 4608, while the sum is 26.

The square root of 231434441 is about 15212.9694997394. The cubic root of 231434441 is about 613.9636552880.

Adding to 231434441 its reverse (144434132), we get a palindrome (375868573).

The spelling of 231434441 in words is "two hundred thirty-one million, four hundred thirty-four thousand, four hundred forty-one".

Divisors: 1 7 23 161 1437481 10062367 33062063 231434441