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23430236 = 228370573
BaseRepresentation
bin101100101100…
…0010001011100
31122002101020112
41121120101130
521444231421
62154105152
7403103504
oct131302134
948071215
1023430236
1112253535
127a1b1b8
134b1485b
14317ca04
1520cc45b
hex165845c

23430236 has 12 divisors (see below), whose sum is σ = 41497512. Its totient is φ = 11573808.

The previous prime is 23430223. The next prime is 23430263. The reversal of 23430236 is 63203432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34955 + ... + 35618.

It is an arithmetic number, because the mean of its divisors is an integer number (3458126).

Almost surely, 223430236 is an apocalyptic number.

It is an amenable number.

23430236 is a deficient number, since it is larger than the sum of its proper divisors (18067276).

23430236 is a wasteful number, since it uses less digits than its factorization.

23430236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70660 (or 70658 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 23430236 is about 4840.4789019270. The cubic root of 23430236 is about 286.1489924127.

Adding to 23430236 its reverse (63203432), we get a palindrome (86633668).

The spelling of 23430236 in words is "twenty-three million, four hundred thirty thousand, two hundred thirty-six".

Divisors: 1 2 4 83 166 332 70573 141146 282292 5857559 11715118 23430236