Search a number
-
+
85285851140 = 22571564738933
BaseRepresentation
bin100111101101101101…
…1101101000000000100
322011010201101010121102
41033123123231000010
52344131134214030
6103102455435232
76106314526220
oct1173333550004
9264121333542
1085285851140
11331957042a6
1214642085b18
138072279399
1441b0ba9780
15234258bc45
hex13db6ed004

85285851140 has 48 divisors (see below), whose sum is σ = 204704381952. Its totient is φ = 29238243456.

The previous prime is 85285851089. The next prime is 85285851169. The reversal of 85285851140 is 4115858258.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2171114 + ... + 2210046.

It is an arithmetic number, because the mean of its divisors is an integer number (4264674624).

Almost surely, 285285851140 is an apocalyptic number.

It is an amenable number.

85285851140 is an abundant number, since it is smaller than the sum of its proper divisors (119418530812).

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

85285851140 is a wasteful number, since it uses less digits than its factorization.

85285851140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54596 (or 54594 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 47.

The spelling of 85285851140 in words is "eighty-five billion, two hundred eighty-five million, eight hundred fifty-one thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15647 31294 38933 62588 77866 78235 109529 155732 156470 194665 219058 272531 312940 389330 438116 545062 547645 778660 1090124 1095290 1362655 2190580 2725310 5450620 609184651 1218369302 2436738604 3045923255 4264292557 6091846510 8528585114 12183693020 17057170228 21321462785 42642925570 85285851140