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231343401001 = 1756501240853
BaseRepresentation
bin1101011101110100100…
…1000010100000101001
3211010010201102102121011
43113131021002200221
512242242402313001
6254135551543521
722466622314566
oct3273511024051
9733121372534
10231343401001
118a126356299
1238a0452aba1
1318a7ab06abb
14b2a8b0786d
15603eeb2d51
hex35dd242829

231343401001 has 8 divisors (see below), whose sum is σ = 244957188744. Its totient is φ = 217730208000.

The previous prime is 231343400993. The next prime is 231343401013. The reversal of 231343401001 is 100104343132.

It can be written as a sum of positive squares in 4 ways, for example, as 712943401 + 230630457600 = 26701^2 + 480240^2 .

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 231343401001 - 23 = 231343400993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231343401071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840091 + ... + 1080943.

It is an arithmetic number, because the mean of its divisors is an integer number (30619648593).

Almost surely, 2231343401001 is an apocalyptic number.

It is an amenable number.

231343401001 is a deficient number, since it is larger than the sum of its proper divisors (13613787743).

231343401001 is a wasteful number, since it uses less digits than its factorization.

231343401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297371.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231343401001 its reverse (100104343132), we get a palindrome (331447744133).

The spelling of 231343401001 in words is "two hundred thirty-one billion, three hundred forty-three million, four hundred one thousand, one".

Divisors: 1 17 56501 240853 960517 4094501 13608435353 231343401001