Search a number
-
+
86579697568 = 25713109272771
BaseRepresentation
bin101000010100010001…
…1010101011110100000
322021110212222100020111
41100220203111132200
52404303400310233
6103435115221104
76153345200230
oct1205043253640
9267425870214
1086579697568
1133799a89271
1214943447794
13821a33b4a0
144294967cc0
1523bae63acd
hex14288d57a0

86579697568 has 96 divisors (see below), whose sum is σ = 211714715520. Its totient is φ = 33936952320.

The previous prime is 86579697509. The next prime is 86579697569.

86579697568 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×865796975683 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 86579697494 and 86579697503.

It is not an unprimeable number, because it can be changed into a prime (86579697569) 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, 181023 + ... + 453793.

It is an arithmetic number, because the mean of its divisors is an integer number (2205361620).

Almost surely, 286579697568 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 86579697568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105857357760).

86579697568 is an abundant number, since it is smaller than the sum of its proper divisors (125135017952).

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

86579697568 is a wasteful number, since it uses less digits than its factorization.

86579697568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272910 (or 272902 counting only the distinct ones).

The product of its digits is 1371686400, while the sum is 76.

The spelling of 86579697568 in words is "eighty-six billion, five hundred seventy-nine million, six hundred ninety-seven thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 109 112 182 208 218 224 364 416 436 728 763 872 1417 1456 1526 1744 2834 2912 3052 3488 5668 6104 9919 11336 12208 19838 22672 24416 39676 45344 79352 158704 272771 317408 545542 1091084 1909397 2182168 3546023 3818794 4364336 7092046 7637588 8728672 14184092 15275176 24822161 28368184 29732039 30550352 49644322 56736368 59464078 61100704 99288644 113472736 118928156 198577288 208124273 237856312 386516507 397154576 416248546 475712624 773033014 794309152 832497092 951425248 1546066028 1664994184 2705615549 3092132056 3329988368 5411231098 6184264112 6659976736 10822462196 12368528224 21644924392 43289848784 86579697568