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23190712 = 233778347
BaseRepresentation
bin101100001110…
…1110010111000
31121122012200021
41120131302320
521414100322
62145020224
7401055256
oct130356270
947565607
1023190712
11120aa586
127924674
134a5c81c
1431195d6
1520814c7
hex161dcb8

23190712 has 16 divisors (see below), whose sum is σ = 44658360. Its totient is φ = 11281824.

The previous prime is 23190689. The next prime is 23190719. The reversal of 23190712 is 21709132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23190719) 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 3 ways as a sum of consecutive naturals, for example, 38878 + ... + 39469.

Almost surely, 223190712 is an apocalyptic number.

It is an amenable number.

23190712 is a deficient number, since it is larger than the sum of its proper divisors (21467648).

23190712 is a wasteful number, since it uses less digits than its factorization.

23190712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78390 (or 78386 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 23190712 is about 4815.6735769776. The cubic root of 23190712 is about 285.1705637484.

Adding to 23190712 its reverse (21709132), we get a palindrome (44899844).

The spelling of 23190712 in words is "twenty-three million, one hundred ninety thousand, seven hundred twelve".

Divisors: 1 2 4 8 37 74 148 296 78347 156694 313388 626776 2898839 5797678 11595356 23190712