Search a number
-
+
85874503680 = 21232571931113
BaseRepresentation
bin100111111111010000…
…1001111000000000000
322012122202000210002100
41033332201033000000
52401332333104210
6103241124350400
76130023144330
oct1177641170000
9265582023070
1085874503680
1133467a116a9
1214787245400
138137200cb4
14422903b0c0
1523790b75c0
hex13fe84f000

85874503680 has 1248 divisors, whose sum is σ = 372911984640. Its totient is φ = 17836277760.

The previous prime is 85874503619. The next prime is 85874503691. The reversal of 85874503680 is 8630547858.

85874503680 is a `hidden beast` number, since 8 + 5 + 8 + 74 + 503 + 68 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 759951304 + ... + 759951416.

It is an arithmetic number, because the mean of its divisors is an integer number (298807680).

Almost surely, 285874503680 is an apocalyptic number.

85874503680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85874503680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186455992320).

85874503680 is an abundant number, since it is smaller than the sum of its proper divisors (287037480960).

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

85874503680 is a wasteful number, since it uses less digits than its factorization.

85874503680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 85874503680 in words is "eighty-five billion, eight hundred seventy-four million, five hundred three thousand, six hundred eighty".