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29307830 = 2517172399
BaseRepresentation
bin110111111001…
…1001110110110
32001010222210012
41233303032312
530000322310
62524100222
7504053366
oct157631666
961128705
1029307830
11155a8452
129994672
1360c1c16
143c6c9a6
15288dc05
hex1bf33b6

29307830 has 16 divisors (see below), whose sum is σ = 55857600. Its totient is φ = 11033472.

The previous prime is 29307827. The next prime is 29307833. The reversal of 29307830 is 3870392.

It is an interprime number because it is at equal distance from previous prime (29307827) and next prime (29307833).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29307833) 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 7 ways as a sum of consecutive naturals, for example, 86030 + ... + 86369.

It is an arithmetic number, because the mean of its divisors is an integer number (3491100).

Almost surely, 229307830 is an apocalyptic number.

29307830 is a deficient number, since it is larger than the sum of its proper divisors (26549770).

29307830 is a wasteful number, since it uses less digits than its factorization.

29307830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172423.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 29307830 is about 5413.6706586197. The cubic root of 29307830 is about 308.3149291831.

The spelling of 29307830 in words is "twenty-nine million, three hundred seven thousand, eight hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 172399 344798 861995 1723990 2930783 5861566 14653915 29307830