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23001946 = 2111045543
BaseRepresentation
bin101011110111…
…1101101011010
31121021121201221
41113233231122
521342030241
62141002254
7366341032
oct127575532
947247657
1023001946
1111a90780
12785338a
1349c4926
1430aa8c2
1520455d1
hex15efb5a

23001946 has 8 divisors (see below), whose sum is σ = 37639584. Its totient is φ = 10455420.

The previous prime is 23001931. The next prime is 23001949. The reversal of 23001946 is 64910032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23001946.

It is not an unprimeable number, because it can be changed into a prime (23001949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522750 + ... + 522793.

It is an arithmetic number, because the mean of its divisors is an integer number (4704948).

Almost surely, 223001946 is an apocalyptic number.

23001946 is a deficient number, since it is larger than the sum of its proper divisors (14637638).

23001946 is a wasteful number, since it uses less digits than its factorization.

23001946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045556.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23001946 is about 4796.0344035463. The cubic root of 23001946 is about 284.3947182882.

Adding to 23001946 its reverse (64910032), we get a palindrome (87911978).

The spelling of 23001946 in words is "twenty-three million, one thousand, nine hundred forty-six".

Divisors: 1 2 11 22 1045543 2091086 11500973 23001946