Search a number
-
+
6855770460 = 22357112313431
BaseRepresentation
bin1100110001010001…
…01100000101011100
3122200210100020001110
412120220230011130
5103020034123320
63052142542020
7331615041660
oct63050540534
918623306043
106855770460
1129a89a3900
1213b3b97910
13853477716
144907348a0
152a1d295e0
hex198a2c15c

6855770460 has 288 divisors, whose sum is σ = 24247351296. Its totient is φ = 1416729600.

The previous prime is 6855770443. The next prime is 6855770461. The reversal of 6855770460 is 640775586.

It is a super-2 number, since 2×68557704602 = 94003177200417223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855770461) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15906445 + ... + 15906875.

It is an arithmetic number, because the mean of its divisors is an integer number (84192192).

Almost surely, 26855770460 is an apocalyptic number.

6855770460 is a gapful number since it is divisible by the number (60) 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 6855770460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12123675648).

6855770460 is an abundant number, since it is smaller than the sum of its proper divisors (17391580836).

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

6855770460 is a wasteful number, since it uses less digits than its factorization.

6855770460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The square root of 6855770460 is about 82799.5800713989. The cubic root of 6855770460 is about 1899.7017500456.

The spelling of 6855770460 in words is "six billion, eight hundred fifty-five million, seven hundred seventy thousand, four hundred sixty".