Search a number
-
+
302222141 = 13171367521
BaseRepresentation
bin10010000000111…
…000101100111101
3210001200110211122
4102000320230331
51104332102031
645553400325
710326563054
oct2200705475
9701613748
10302222141
11145661a71
12852690a5
134a7c8390
142c1d139b
151b7ec47b
hex12038b3d

302222141 has 8 divisors (see below), whose sum is σ = 344615544. Its totient is φ = 262563840.

The previous prime is 302222119. The next prime is 302222143. The reversal of 302222141 is 141222203.

It can be written as a sum of positive squares in 4 ways, for example, as 101404900 + 200817241 = 10070^2 + 14171^2 .

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 302222141 - 26 = 302222077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302222143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 683540 + ... + 683981.

It is an arithmetic number, because the mean of its divisors is an integer number (43076943).

Almost surely, 2302222141 is an apocalyptic number.

It is an amenable number.

302222141 is a deficient number, since it is larger than the sum of its proper divisors (42393403).

302222141 is a wasteful number, since it uses less digits than its factorization.

302222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367551.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 302222141 is about 17384.5374111594. The cubic root of 302222141 is about 671.0817462557.

Adding to 302222141 its reverse (141222203), we get a palindrome (443444344).

The spelling of 302222141 in words is "three hundred two million, two hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 13 17 221 1367521 17777773 23247857 302222141