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23430239 = 75775801
BaseRepresentation
bin101100101100…
…0010001011111
31122002101020122
41121120101133
521444231424
62154105155
7403103510
oct131302137
948071218
1023430239
1112253538
127a1b1bb
134b14861
14317ca07
1520cc45e
hex165845f

23430239 has 8 divisors (see below), whose sum is σ = 26828448. Its totient is φ = 20044800.

The previous prime is 23430223. The next prime is 23430263. The reversal of 23430239 is 93203432.

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 23430239 - 24 = 23430223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (3353556).

Almost surely, 223430239 is an apocalyptic number.

23430239 is a deficient number, since it is larger than the sum of its proper divisors (3398209).

23430239 is an equidigital number, since it uses as much as digits as its factorization.

23430239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 23430239 is about 4840.4792118136. The cubic root of 23430239 is about 286.1490046255.

The spelling of 23430239 in words is "twenty-three million, four hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 7 577 4039 5801 40607 3347177 23430239