Search a number
-
+
30102241 = 134156477
BaseRepresentation
bin111001011010…
…1001011100001
32002122100111211
41302311023201
530201232431
62553110121
7513602431
oct162651341
962570454
1030102241
1115aa0294
12a0b8341
13630c6a0
143dd82c1
1529992b1
hex1cb52e1

30102241 has 8 divisors (see below), whose sum is σ = 33209064. Its totient is φ = 27108480.

The previous prime is 30102227. The next prime is 30102263. The reversal of 30102241 is 14220103.

It can be written as a sum of positive squares in 4 ways, for example, as 4498641 + 25603600 = 2121^2 + 5060^2 .

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 30102241 - 213 = 30094049 is a prime.

It is a super-2 number, since 2×301022412 = 1812289826444162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30102211) 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, 27706 + ... + 28771.

It is an arithmetic number, because the mean of its divisors is an integer number (4151133).

Almost surely, 230102241 is an apocalyptic number.

It is an amenable number.

30102241 is a deficient number, since it is larger than the sum of its proper divisors (3106823).

30102241 is a wasteful number, since it uses less digits than its factorization.

30102241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56531.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30102241 is about 5486.5509202048. The cubic root of 30102241 is about 311.0758354231.

Adding to 30102241 its reverse (14220103), we get a palindrome (44322344).

It can be divided in two parts, 3010224 and 1, that added together give a square (3010225 = 17352).

The spelling of 30102241 in words is "thirty million, one hundred two thousand, two hundred forty-one".

Divisors: 1 13 41 533 56477 734201 2315557 30102241