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29109830 = 253478389
BaseRepresentation
bin110111100001…
…0111001000110
32000202221011212
41233002321012
524423003310
62515531422
7502300211
oct157027106
960687155
1029109830
1115482712
1298b9b72
136052a69
143c1a778
152850205
hex1bc2e46

29109830 has 16 divisors (see below), whose sum is σ = 52554960. Its totient is φ = 11608992.

The previous prime is 29109827. The next prime is 29109851. The reversal of 29109830 is 3890192.

It is a congruent number.

It is an unprimeable number.

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, 725 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (3284685).

Almost surely, 229109830 is an apocalyptic number.

29109830 is a deficient number, since it is larger than the sum of its proper divisors (23445130).

29109830 is a wasteful number, since it uses less digits than its factorization.

29109830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8743.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 29109830 is about 5395.3526298102. The cubic root of 29109830 is about 307.6190474783.

The spelling of 29109830 in words is "twenty-nine million, one hundred nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 347 694 1735 3470 8389 16778 41945 83890 2910983 5821966 14554915 29109830