Search a number
-
+
308206041 = 311133719417
BaseRepresentation
bin10010010111101…
…101100111011001
3210110221111012120
4102113231213121
51112400043131
650325531453
710431464613
oct2227554731
9713844176
10308206041
11148a79840
1287273b89
134bb11c50
142cd0bdb3
151c0d0496
hex125ed9d9

308206041 has 32 divisors (see below), whose sum is σ = 495858048. Its totient is φ = 167754240.

The previous prime is 308206037. The next prime is 308206043. The reversal of 308206041 is 140602803.

It is a happy number.

It is not a de Polignac number, because 308206041 - 22 = 308206037 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308206043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6165 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (15495564).

Almost surely, 2308206041 is an apocalyptic number.

It is an amenable number.

308206041 is a deficient number, since it is larger than the sum of its proper divisors (187652007).

308206041 is a wasteful number, since it uses less digits than its factorization.

308206041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19481.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 308206041 is about 17555.7979311679. The cubic root of 308206041 is about 675.4818989514.

Adding to 308206041 its reverse (140602803), we get a palindrome (448808844).

The spelling of 308206041 in words is "three hundred eight million, two hundred six thousand, forty-one".

Divisors: 1 3 11 13 33 37 39 111 143 407 429 481 1221 1443 5291 15873 19417 58251 213587 252421 640761 718429 757263 2155287 2776631 7902719 8329893 9339577 23708157 28018731 102735347 308206041