Search a number
-
+
23938479 = 3231239359
BaseRepresentation
bin101101101010…
…0010110101111
31200001012102100
41123110112233
522112012404
62213030143
7410321325
oct133242657
950035370
1023938479
1112570374
128025353
134c61ca6
143271d15
15217cd39
hex16d45af

23938479 has 24 divisors (see below), whose sum is σ = 35942400. Its totient is φ = 15336720.

The previous prime is 23938477. The next prime is 23938493. The reversal of 23938479 is 97483932.

It is a happy number.

It is not a de Polignac number, because 23938479 - 21 = 23938477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23938477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66502 + ... + 66860.

It is an arithmetic number, because the mean of its divisors is an integer number (1497600).

Almost surely, 223938479 is an apocalyptic number.

23938479 is a deficient number, since it is larger than the sum of its proper divisors (12003921).

23938479 is a wasteful number, since it uses less digits than its factorization.

23938479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 632 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 23938479 is about 4892.6964957986. The cubic root of 23938479 is about 288.2032347312.

The spelling of 23938479 in words is "twenty-three million, nine hundred thirty-eight thousand, four hundred seventy-nine".

Divisors: 1 3 9 31 93 239 279 359 717 1077 2151 3231 7409 11129 22227 33387 66681 85801 100161 257403 772209 2659831 7979493 23938479