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30205716 = 22323109441
BaseRepresentation
bin111001100111…
…0011100010100
32002211121110020
41303032130110
530213040331
62555225140
7514513212
oct163163424
962747406
1030205716
1116061002
12a1481b0
136347808
144023cb2
1529b9c96
hex1cce714

30205716 has 24 divisors (see below), whose sum is σ = 73545024. Its totient is φ = 9630720.

The previous prime is 30205711. The next prime is 30205751. The reversal of 30205716 is 61750203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205711) 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, 54445 + ... + 54996.

It is an arithmetic number, because the mean of its divisors is an integer number (3064376).

Almost surely, 230205716 is an apocalyptic number.

It is an amenable number.

30205716 is an abundant number, since it is smaller than the sum of its proper divisors (43339308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30205716 is a wasteful number, since it uses less digits than its factorization.

30205716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109471 (or 109469 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 30205716 is about 5495.9727073558. The cubic root of 30205716 is about 311.4318638455.

Adding to 30205716 its reverse (61750203), we get a palindrome (91955919).

The spelling of 30205716 in words is "thirty million, two hundred five thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 109441 218882 328323 437764 656646 1313292 2517143 5034286 7551429 10068572 15102858 30205716