Search a number
-
+
23004012 = 2231917001
BaseRepresentation
bin101011111000…
…0001101101100
31121021201120110
41113300031230
521342112022
62141020020
7366350043
oct127601554
947251513
1023004012
1111a92289
127854610
1349c5855
1430ab55a
15204600c
hex15f036c

23004012 has 12 divisors (see below), whose sum is σ = 53676056. Its totient is φ = 7668000.

The previous prime is 23003977. The next prime is 23004013. The reversal of 23004012 is 21040032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×230040124 (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1917001 = 23004012 / (2 + 3 + 0 + 0 + 4 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (23004013) 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, 958489 + ... + 958512.

Almost surely, 223004012 is an apocalyptic number.

It is an amenable number.

23004012 is an abundant number, since it is smaller than the sum of its proper divisors (30672044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23004012 is a wasteful number, since it uses less digits than its factorization.

23004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917008 (or 1917006 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 23004012 is about 4796.2497849883. The cubic root of 23004012 is about 284.4032326677.

Adding to 23004012 its reverse (21040032), we get a palindrome (44044044).

The spelling of 23004012 in words is "twenty-three million, four thousand, twelve".

Divisors: 1 2 3 4 6 12 1917001 3834002 5751003 7668004 11502006 23004012