Search a number
-
+
726103872 = 26331332323
BaseRepresentation
bin101011010001110…
…111011101000000
31212121021220021000
4223101313131000
52441340310442
6200014532000
723664531624
oct5321673500
91777256230
10726103872
1134295964a
12183207000
13b757bb80
146c611184
1543b2bd4c
hex2b477740

726103872 has 112 divisors (see below), whose sum is σ = 2298882880. Its totient is φ = 223409664.

The previous prime is 726103871. The next prime is 726103877. The reversal of 726103872 is 278301627.

726103872 is a `hidden beast` number, since 7 + 2 + 610 + 38 + 7 + 2 = 666.

726103872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726103871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6303 + ... + 38625.

It is an arithmetic number, because the mean of its divisors is an integer number (20525740).

Almost surely, 2726103872 is an apocalyptic number.

726103872 is a gapful number since it is divisible by the number (72) 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 726103872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149441440).

726103872 is an abundant number, since it is smaller than the sum of its proper divisors (1572779008).

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

726103872 is a wasteful number, since it uses less digits than its factorization.

726103872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32357 (or 32341 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 726103872 is about 26946.3146274217. The cubic root of 726103872 is about 898.8065960183.

The spelling of 726103872 in words is "seven hundred twenty-six million, one hundred three thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 144 156 192 208 216 234 288 312 351 416 432 468 576 624 702 832 864 936 1248 1404 1728 1872 2496 2808 3744 5616 7488 11232 22464 32323 64646 96969 129292 193938 258584 290907 387876 420199 517168 581814 775752 840398 872721 1034336 1163628 1260597 1551504 1680796 1745442 2068672 2327256 2521194 3103008 3361592 3490884 3781791 4654512 5042388 6206016 6723184 6981768 7563582 9309024 10084776 11345373 13446368 13963536 15127164 18618048 20169552 22690746 26892736 27927072 30254328 40339104 45381492 55854144 60508656 80678208 90762984 121017312 181525968 242034624 363051936 726103872