Search a number
-
+
72588768 = 2537109991
BaseRepresentation
bin1000101001110…
…01110111100000
312001120220001220
410110321313200
5122040320033
611111455040
71540665030
oct424716740
9161526056
1072588768
1137a7a01a
1220387480
1312066c45
1498d78c0
15658cbb3
hex4539de0

72588768 has 96 divisors (see below), whose sum is σ = 219985920. Its totient is φ = 20528640.

The previous prime is 72588743. The next prime is 72588779. The reversal of 72588768 is 86788527.

It is a tau number, because it is divible by the number of its divisors (96).

Its product of digits (1505280) is a multiple of the sum of its prime factors (1120).

It is a self number, because there is not a number n which added to its sum of digits gives 72588768.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 72753 + ... + 73743.

It is an arithmetic number, because the mean of its divisors is an integer number (2291520).

Almost surely, 272588768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72588768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109992960).

72588768 is an abundant number, since it is smaller than the sum of its proper divisors (147397152).

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

72588768 is a wasteful number, since it uses less digits than its factorization.

72588768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1112 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 51.

The square root of 72588768 is about 8519.9042248138. The cubic root of 72588768 is about 417.1476568803.

The spelling of 72588768 in words is "seventy-two million, five hundred eighty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 109 112 168 218 224 327 336 436 654 672 763 872 991 1308 1526 1744 1982 2289 2616 2973 3052 3488 3964 4578 5232 5946 6104 6937 7928 9156 10464 11892 12208 13874 15856 18312 20811 23784 24416 27748 31712 36624 41622 47568 55496 73248 83244 95136 108019 110992 166488 216038 221984 324057 332976 432076 648114 665952 756133 864152 1296228 1512266 1728304 2268399 2592456 3024532 3456608 4536798 5184912 6049064 9073596 10369824 12098128 18147192 24196256 36294384 72588768