Search a number
-
+
1086775680 = 273519313
BaseRepresentation
bin100000011000110…
…1110000110000000
32210201221220222010
41000301232012000
54211203310210
6255501212520
735634304134
oct10061560600
92721856863
101086775680
11508502721
12263b61140
13144200643
14a44993c4
1565622920
hex40c6e180

1086775680 has 256 divisors, whose sum is σ = 3767961600. Its totient is φ = 265697280.

The previous prime is 1086775673. The next prime is 1086775687. The reversal of 1086775680 is 865776801.

It is an interprime number because it is at equal distance from previous prime (1086775673) and next prime (1086775687).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086775687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35057265 + ... + 35057295.

It is an arithmetic number, because the mean of its divisors is an integer number (14718600).

Almost surely, 21086775680 is an apocalyptic number.

1086775680 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 1086775680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1883980800).

1086775680 is an abundant number, since it is smaller than the sum of its proper divisors (2681185920).

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

1086775680 is an frugal number, since it uses more digits than its factorization.

1086775680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 1086775680 is about 32966.2809549394. The cubic root of 1086775680 is about 1028.1266983894.

The spelling of 1086775680 in words is "one billion, eighty-six million, seven hundred seventy-five thousand, six hundred eighty".