Search a number
-
+
160711892640 = 25345136771409
BaseRepresentation
bin1001010110101100101…
…1001101111010100000
3120100211021210001010000
42111223023031322200
510113114221031030
6201455141340000
714416406355645
oct2255313157240
9510737701100
10160711892640
1162180745692
1227192107600
13122028b1180
147ac82a5dcc
1542a920d860
hex256b2cdea0

160711892640 has 480 divisors, whose sum is σ = 612144585360. Its totient is φ = 39473381376.

The previous prime is 160711892603. The next prime is 160711892641. The reversal of 160711892640 is 46298117061.

160711892640 is a `hidden beast` number, since 1 + 607 + 1 + 18 + 9 + 26 + 4 + 0 = 666.

160711892640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 42092266896 + 118619625744 = 205164^2 + 344412^2 .

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (160711892641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 114060256 + ... + 114061664.

Almost surely, 2160711892640 is an apocalyptic number.

160711892640 is a gapful number since it is divisible by the number (10) 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 160711892640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306072292680).

160711892640 is an abundant number, since it is smaller than the sum of its proper divisors (451432692720).

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

160711892640 is a wasteful number, since it uses less digits than its factorization.

160711892640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 160711892640 in words is "one hundred sixty billion, seven hundred eleven million, eight hundred ninety-two thousand, six hundred forty".