Search a number
-
+
23680944 = 2433741191
BaseRepresentation
bin101101001010…
…1011110110000
31122120010011000
41122111132300
522030242234
62203322000
7405166440
oct132253660
948503130
1023680944
1112404931
127b20300
134ba19c1
143206120
15212b899
hex16957b0

23680944 has 160 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 6566400.

The previous prime is 23680927. The next prime is 23680957. The reversal of 23680944 is 44908632.

It is a happy number.

It is a super-2 number, since 2×236809442 = 1121574217462272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23680899 and 23680908.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 123889 + ... + 124079.

It is an arithmetic number, because the mean of its divisors is an integer number (499968).

Almost surely, 223680944 is an apocalyptic number.

23680944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23680944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39997440).

23680944 is an abundant number, since it is smaller than the sum of its proper divisors (56313936).

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

23680944 is a wasteful number, since it uses less digits than its factorization.

23680944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 23680944 is about 4866.3070186744. The cubic root of 23680944 is about 287.1659899258.

The spelling of 23680944 in words is "twenty-three million, six hundred eighty thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 41 42 48 54 56 63 72 82 84 108 112 123 126 144 164 168 189 191 216 246 252 287 328 336 369 378 382 432 492 504 573 574 656 738 756 764 861 984 1008 1107 1146 1148 1337 1476 1512 1528 1719 1722 1968 2214 2292 2296 2583 2674 2952 3024 3056 3438 3444 4011 4428 4584 4592 5157 5166 5348 5904 6876 6888 7749 7831 8022 8856 9168 10314 10332 10696 12033 13752 13776 15498 15662 16044 17712 20628 20664 21392 23493 24066 27504 30996 31324 32088 36099 41256 41328 46986 48132 54817 61992 62648 64176 70479 72198 82512 93972 96264 109634 123984 125296 140958 144396 164451 187944 192528 211437 219268 281916 288792 328902 375888 422874 438536 493353 563832 577584 657804 845748 877072 986706 1127664 1315608 1480059 1691496 1973412 2631216 2960118 3382992 3946824 5920236 7893648 11840472 23680944