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29830 = 2519157
BaseRepresentation
bin111010010000110
31111220211
413102012
51423310
6350034
7152653
oct72206
944824
1029830
1120459
121531a
1310768
14ac2a
158c8a
hex7486

29830 has 16 divisors (see below), whose sum is σ = 56880. Its totient is φ = 11232.

The previous prime is 29819. The next prime is 29833. The reversal of 29830 is 3892.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 268.

It is an arithmetic number, because the mean of its divisors is an integer number (3555).

229830 is an apocalyptic number.

29830 is a deficient number, since it is larger than the sum of its proper divisors (27050).

29830 is a wasteful number, since it uses less digits than its factorization.

29830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 29830 is about 172.7136358253. The cubic root of 29830 is about 31.0135216767.

The spelling of 29830 in words is "twenty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 19 38 95 157 190 314 785 1570 2983 5966 14915 29830