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23061806 = 211530903
BaseRepresentation
bin101011111111…
…0010100101110
31121101122211222
41113332110232
521400434211
62142143342
7400010405
oct127762456
947348758
1023061806
1112021749
127881b52
134a15c51
1430c463c
1520581db
hex15fe52e

23061806 has 4 divisors (see below), whose sum is σ = 34592712. Its totient is φ = 11530902.

The previous prime is 23061791. The next prime is 23061811. The reversal of 23061806 is 60816032.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×230618064 (a number of 31 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765450 + ... + 5765453.

It is an arithmetic number, because the mean of its divisors is an integer number (8648178).

Almost surely, 223061806 is an apocalyptic number.

23061806 is a deficient number, since it is larger than the sum of its proper divisors (11530906).

23061806 is a wasteful number, since it uses less digits than its factorization.

23061806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530905.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 23061806 is about 4802.2709211372. The cubic root of 23061806 is about 284.6412064415.

Adding to 23061806 its reverse (60816032), we get a palindrome (83877838).

The spelling of 23061806 in words is "twenty-three million, sixty-one thousand, eight hundred six".

Divisors: 1 2 11530903 23061806