Search a number
-
+
207040260 = 223575371131
BaseRepresentation
bin11000101011100…
…10111100000100
3112102120201211210
430111302330010
5411000242020
632313331420
75062545630
oct1425627404
9472521753
10207040260
11a6961459
1259406b70
1333b8093b
141d6d5dc0
151329a3e0
hexc572f04

207040260 has 192 divisors, whose sum is σ = 689762304. Its totient is φ = 45427200.

The previous prime is 207040259. The next prime is 207040279. The reversal of 207040260 is 62040702.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1580395 + ... + 1580525.

It is an arithmetic number, because the mean of its divisors is an integer number (3592512).

Almost surely, 2207040260 is an apocalyptic number.

207040260 is a gapful number since it is divisible by the number (20) 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 207040260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344881152).

207040260 is an abundant number, since it is smaller than the sum of its proper divisors (482722044).

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

207040260 is a wasteful number, since it uses less digits than its factorization.

207040260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 207040260 is about 14388.8936336329. The cubic root of 207040260 is about 591.5865180949.

Adding to 207040260 its reverse (62040702), we get a palindrome (269080962).

The spelling of 207040260 in words is "two hundred seven million, forty thousand, two hundred sixty".