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23299930 = 253975869
BaseRepresentation
bin101100011100…
…0011101011010
31121211202111101
41120320131122
521431044210
62151222014
7402021553
oct130703532
947752441
1023299930
1112174645
12797790a
134a9a454
14314732a
1520a3a3a
hex163875a

23299930 has 16 divisors (see below), whose sum is σ = 42052680. Its totient is φ = 9294912.

The previous prime is 23299919. The next prime is 23299951. The reversal of 23299930 is 3999232.

It is a Cunningham number, because it is equal to 48272+1.

It can be written as a sum of positive squares in 4 ways, for example, as 15610401 + 7689529 = 3951^2 + 2773^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23299930.

It is an unprimeable number.

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, 1036 + ... + 6904.

Almost surely, 223299930 is an apocalyptic number.

23299930 is a deficient number, since it is larger than the sum of its proper divisors (18752750).

23299930 is a wasteful number, since it uses less digits than its factorization.

23299930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 23299930 is about 4827.0001035840. Note that the first 3 decimals coincide. The cubic root of 23299930 is about 285.6175385532.

The spelling of 23299930 in words is "twenty-three million, two hundred ninety-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 397 794 1985 3970 5869 11738 29345 58690 2329993 4659986 11649965 23299930