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23997748 = 2214534129
BaseRepresentation
bin101101110001…
…0110100110100
31200011012201111
41123202310310
522120411443
62214204404
7410656165
oct133426464
950135644
1023997748
1112600955
128053704
134c82c68
14328976c
15219069d
hex16e2d34

23997748 has 12 divisors (see below), whose sum is σ = 42035140. Its totient is φ = 11987712.

The previous prime is 23997731. The next prime is 23997749. The reversal of 23997748 is 84779932.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 4443664 = 4422^2 + 2108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23997749) 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, 3748 + ... + 7876.

Almost surely, 223997748 is an apocalyptic number.

It is an amenable number.

23997748 is a deficient number, since it is larger than the sum of its proper divisors (18037392).

23997748 is a wasteful number, since it uses less digits than its factorization.

23997748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586 (or 5584 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 23997748 is about 4898.7496363868. The cubic root of 23997748 is about 288.4408917070.

The spelling of 23997748 in words is "twenty-three million, nine hundred ninety-seven thousand, seven hundred forty-eight".

Divisors: 1 2 4 1453 2906 4129 5812 8258 16516 5999437 11998874 23997748