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89885032008 = 23317222757089
BaseRepresentation
bin101001110110110010…
…0001011111001001000
322121000020112201200120
41103231210023321020
52433041032011013
6105143112103240
76331302110622
oct1235544137110
9277006481616
1089885032008
1135135836a22
1215506394b20
13862606a895
1444c9931c12
15251121c123
hex14ed90be48

89885032008 has 96 divisors (see below), whose sum is σ = 239764298400. Its totient is φ = 28074508288.

The previous prime is 89885032001. The next prime is 89885032009. The reversal of 89885032008 is 80023058898.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (89885032001) 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, 1545928 + ... + 1603016.

It is an arithmetic number, because the mean of its divisors is an integer number (2497544775).

Almost surely, 289885032008 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 89885032008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119882149200).

89885032008 is an abundant number, since it is smaller than the sum of its proper divisors (149879266392).

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

89885032008 is a wasteful number, since it uses less digits than its factorization.

89885032008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57359 (or 57338 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 89885032008 in words is "eighty-nine billion, eight hundred eighty-five million, thirty-two thousand, eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 227 289 408 454 578 681 867 908 1156 1362 1734 1816 2312 2724 3468 3859 5448 6936 7718 11577 15436 23154 30872 46308 57089 65603 92616 114178 131206 171267 196809 228356 262412 342534 393618 456712 524824 685068 787236 970513 1370136 1574472 1941026 2911539 3882052 5823078 7764104 11646156 12959203 16498721 23292312 25918406 32997442 38877609 49496163 51836812 65994884 77755218 98992326 103673624 131989768 155510436 197984652 220306451 311020872 395969304 440612902 660919353 881225804 1321838706 1762451608 2643677412 3745209667 5287354824 7490419334 11235629001 14980838668 22471258002 29961677336 44942516004 89885032008