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231102426 = 2338517071
BaseRepresentation
bin11011100011001…
…01011111011010
3121002212012221010
431301211133122
5433130234201
634533154350
75504224002
oct1561453732
9532765833
10231102426
111094a6745
126548b9b6
1338b56cc9
142299b002
151544ebd6
hexdc657da

231102426 has 8 divisors (see below), whose sum is σ = 462204864. Its totient is φ = 77034140.

The previous prime is 231102409. The next prime is 231102457. The reversal of 231102426 is 624201132.

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

231102426 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19258530 + ... + 19258541.

It is an arithmetic number, because the mean of its divisors is an integer number (57775608).

Almost surely, 2231102426 is an apocalyptic number.

231102426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231102426 is a wasteful number, since it uses less digits than its factorization.

231102426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38517076.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 231102426 is about 15202.0533481500. The cubic root of 231102426 is about 613.6699181093.

Adding to 231102426 its reverse (624201132), we get a palindrome (855303558).

The spelling of 231102426 in words is "two hundred thirty-one million, one hundred two thousand, four hundred twenty-six".

Divisors: 1 2 3 6 38517071 77034142 115551213 231102426