Search a number
-
+
82703231 = 1311356299
BaseRepresentation
bin1001110110111…
…11001101111111
312202121202111122
410323133031333
5132133000411
612112341155
72022652202
oct473371577
9182552448
1082703231
1142758186
12238447bb
1314198930
14adab939
1573d99db
hex4edf37f

82703231 has 8 divisors (see below), whose sum is σ = 89854800. Its totient is φ = 75664512.

The previous prime is 82703213. The next prime is 82703237. The reversal of 82703231 is 13230728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82703231 - 218 = 82441087 is a prime.

It is a super-2 number, since 2×827032312 = 13679648835678722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82703231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82703237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26681 + ... + 29618.

It is an arithmetic number, because the mean of its divisors is an integer number (11231850).

Almost surely, 282703231 is an apocalyptic number.

82703231 is a deficient number, since it is larger than the sum of its proper divisors (7151569).

82703231 is a wasteful number, since it uses less digits than its factorization.

82703231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56425.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 82703231 is about 9094.1316792754. The cubic root of 82703231 is about 435.6865557812.

Adding to 82703231 its reverse (13230728), we get a palindrome (95933959).

The spelling of 82703231 in words is "eighty-two million, seven hundred three thousand, two hundred thirty-one".

Divisors: 1 13 113 1469 56299 731887 6361787 82703231