Search a number
-
+
86488228780 = 22513731565047
BaseRepresentation
bin101000010001100011…
…0011010001110101100
322021020111212020122121
41100203012122032230
52404111441310110
6103422050522324
76151154546332
oct1204306321654
9267214766577
1086488228780
1133752394428
12149188963a4
1382043c3b45
144286757b52
1523b2de6cda
hex142319a3ac

86488228780 has 24 divisors (see below), whose sum is σ = 182951018208. Its totient is φ = 34342770048.

The previous prime is 86488228763. The next prime is 86488228781. The reversal of 86488228780 is 8782288468.

It is not an unprimeable number, because it can be changed into a prime (86488228781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15779784 + ... + 15785263.

It is an arithmetic number, because the mean of its divisors is an integer number (7622959092).

Almost surely, 286488228780 is an apocalyptic number.

It is an amenable number.

86488228780 is an abundant number, since it is smaller than the sum of its proper divisors (96462789428).

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

86488228780 is a wasteful number, since it uses less digits than its factorization.

86488228780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565193 (or 31565191 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 61.

The spelling of 86488228780 in words is "eighty-six billion, four hundred eighty-eight million, two hundred twenty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 31565047 63130094 126260188 157825235 315650470 631300940 4324411439 8648822878 17297645756 21622057195 43244114390 86488228780