Search a number
-
+
301431442 = 2132891809
BaseRepresentation
bin10001111101110…
…111101010010010
3210000012022012111
4101331313222102
51104131301232
645524415534
710320060604
oct2175675222
9700168174
10301431442
111451719a4
1284b475aa
134a5ac500
142c067174
151b6e3047
hex11f77a92

301431442 has 12 divisors (see below), whose sum is σ = 489603690. Its totient is φ = 139122048.

The previous prime is 301431421. The next prime is 301431443. The reversal of 301431442 is 244134103.

It can be written as a sum of positive squares in 3 ways, for example, as 211731601 + 89699841 = 14551^2 + 9471^2 .

It is not an unprimeable number, because it can be changed into a prime (301431443) 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 5 ways as a sum of consecutive naturals, for example, 445567 + ... + 446242.

Almost surely, 2301431442 is an apocalyptic number.

301431442 is a deficient number, since it is larger than the sum of its proper divisors (188172248).

301431442 is a wasteful number, since it uses less digits than its factorization.

301431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891837 (or 891824 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 301431442 is about 17361.7810722287. The cubic root of 301431442 is about 670.4959882745.

Adding to 301431442 its reverse (244134103), we get a palindrome (545565545).

The spelling of 301431442 in words is "three hundred one million, four hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 13 26 169 338 891809 1783618 11593517 23187034 150715721 301431442