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23254047 = 34287087
BaseRepresentation
bin101100010110…
…1010000011111
31121202102120000
41120231100133
521423112142
62150225343
7401441025
oct130552037
947672500
1023254047
1112143123
127955253
134a825bb
143134715
15209514c
hex162d41f

23254047 has 10 divisors (see below), whose sum is σ = 34737648. Its totient is φ = 15502644.

The previous prime is 23254039. The next prime is 23254051. The reversal of 23254047 is 74045232.

It is not a de Polignac number, because 23254047 - 23 = 23254039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23254047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23254057) 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 9 ways as a sum of consecutive naturals, for example, 143463 + ... + 143624.

Almost surely, 223254047 is an apocalyptic number.

23254047 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23254047 is a deficient number, since it is larger than the sum of its proper divisors (11483601).

23254047 is an equidigital number, since it uses as much as digits as its factorization.

23254047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287099 (or 287090 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 23254047 is about 4822.2450165872. The cubic root of 23254047 is about 285.4299328221.

Adding to 23254047 its reverse (74045232), we get a palindrome (97299279).

The spelling of 23254047 in words is "twenty-three million, two hundred fifty-four thousand, forty-seven".

Divisors: 1 3 9 27 81 287087 861261 2583783 7751349 23254047