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23969938 = 255721517
BaseRepresentation
bin101101101110…
…0000010010010
31200002210120111
41123130002102
522114014223
62213431534
7410512126
oct133340222
950083514
1023969938
1112591a73
12803b5aa
134c733c5
14327d586
15218730d
hex16dc092

23969938 has 8 divisors (see below), whose sum is σ = 36021132. Its totient is φ = 11962896.

The previous prime is 23969909. The next prime is 23969941. The reversal of 23969938 is 83996932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21650409 + 2319529 = 4653^2 + 1523^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23969891 and 23969900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9645 + ... + 11872.

Almost surely, 223969938 is an apocalyptic number.

23969938 is a deficient number, since it is larger than the sum of its proper divisors (12051194).

23969938 is a wasteful number, since it uses less digits than its factorization.

23969938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22076.

The product of its digits is 629856, while the sum is 49.

The square root of 23969938 is about 4895.9103341462. The cubic root of 23969938 is about 288.3294278895.

The spelling of 23969938 in words is "twenty-three million, nine hundred sixty-nine thousand, nine hundred thirty-eight".

Divisors: 1 2 557 1114 21517 43034 11984969 23969938