Search a number
-
+
23105313200 = 24521271572897
BaseRepresentation
bin10101100001001011…
…110001100110110000
32012122020201112010202
4111201023301212300
5334304430010300
614340415014332
71445366631104
oct254113614660
965566645122
1023105313200
11988738a872
124589b0a3a8
132242b43178
1411928a3904
159036b3ad5
hex5612f19b0

23105313200 has 120 divisors (see below), whose sum is σ = 56323395072. Its totient is φ = 9107804160.

The previous prime is 23105313197. The next prime is 23105313211. The reversal of 23105313200 is 231350132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7974152 + ... + 7977048.

Almost surely, 223105313200 is an apocalyptic number.

23105313200 is a gapful number since it is divisible by the number (20) 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 23105313200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28161697536).

23105313200 is an abundant number, since it is smaller than the sum of its proper divisors (33218081872).

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

23105313200 is a wasteful number, since it uses less digits than its factorization.

23105313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199 (or 3188 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 23105313200 its reverse (231350132), we get a palindrome (23336663332).

The spelling of 23105313200 in words is "twenty-three billion, one hundred five million, three hundred thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 127 157 200 254 314 400 508 628 635 785 1016 1256 1270 1570 2032 2512 2540 2897 3140 3175 3925 5080 5794 6280 6350 7850 10160 11588 12560 12700 14485 15700 19939 23176 25400 28970 31400 39878 46352 50800 57940 62800 72425 79756 99695 115880 144850 159512 199390 231760 289700 319024 367919 398780 454829 498475 579400 735838 797560 909658 996950 1158800 1471676 1595120 1819316 1839595 1993900 2274145 2943352 3638632 3679190 3987800 4548290 5886704 7277264 7358380 7975600 9096580 9197975 11370725 14716760 18193160 18395950 22741450 29433520 36386320 36791900 45482900 57763283 73583800 90965800 115526566 147167600 181931600 231053132 288816415 462106264 577632830 924212528 1155265660 1444082075 2310531320 2888164150 4621062640 5776328300 11552656600 23105313200