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30234041 = 171778473
BaseRepresentation
bin111001101010…
…1010110111001
32002220001022022
41303111112321
530214442131
63000004225
7514661615
oct163252671
962801268
1030234041
1116080312
12a160675
136357686
144030345
1529c337b
hex1cd55b9

30234041 has 4 divisors (see below), whose sum is σ = 32012532. Its totient is φ = 28455552.

The previous prime is 30234023. The next prime is 30234067. The reversal of 30234041 is 14043203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8880400 + 21353641 = 2980^2 + 4621^2 .

It is not a de Polignac number, because 30234041 - 26 = 30233977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1778473 = 30234041 / (3 + 0 + 2 + 3 + 4 + 0 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30234341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889220 + ... + 889253.

It is an arithmetic number, because the mean of its divisors is an integer number (8003133).

Almost surely, 230234041 is an apocalyptic number.

It is an amenable number.

30234041 is a deficient number, since it is larger than the sum of its proper divisors (1778491).

30234041 is a wasteful number, since it uses less digits than its factorization.

30234041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778490.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30234041 is about 5498.5489904156. The cubic root of 30234041 is about 311.5291804331.

Adding to 30234041 its reverse (14043203), we get a palindrome (44277244).

It can be divided in two parts, 302 and 34041, that added together give a palindrome (34343).

The spelling of 30234041 in words is "thirty million, two hundred thirty-four thousand, forty-one".

Divisors: 1 17 1778473 30234041