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231268001 = 709326189
BaseRepresentation
bin11011100100011…
…01111010100001
3121010011122001112
431302031322201
5433201034001
634540513105
75505513506
oct1562157241
9533148045
10231268001
111095aa088
126554b795
1338bb4493
1422a014ad
1515483cbb
hexdc8dea1

231268001 has 4 divisors (see below), whose sum is σ = 231594900. Its totient is φ = 230941104.

The previous prime is 231267979. The next prime is 231268007. The reversal of 231268001 is 100862132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19536400 + 211731601 = 4420^2 + 14551^2 .

It is a cyclic number.

It is not a de Polignac number, because 231268001 - 226 = 164159137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231268007) 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, 162386 + ... + 163803.

It is an arithmetic number, because the mean of its divisors is an integer number (57898725).

Almost surely, 2231268001 is an apocalyptic number.

It is an amenable number.

231268001 is a deficient number, since it is larger than the sum of its proper divisors (326899).

231268001 is an equidigital number, since it uses as much as digits as its factorization.

231268001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326898.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 231268001 is about 15207.4981834620. The cubic root of 231268001 is about 613.8164392025.

The spelling of 231268001 in words is "two hundred thirty-one million, two hundred sixty-eight thousand, one".

Divisors: 1 709 326189 231268001