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29108872 = 2313535281
BaseRepresentation
bin110111100001…
…0101010001000
32000202212212101
41233002222020
524422440442
62515523144
7502264342
oct157025210
960685771
1029108872
1115481a21
1298b94b4
1360524b0
143c1a292
15284ecb7
hex1bc2a88

29108872 has 32 divisors (see below), whose sum is σ = 59897880. Its totient is φ = 13178880.

The previous prime is 29108867. The next prime is 29108873. The reversal of 29108872 is 27880192.

It can be written as a sum of positive squares in 4 ways, for example, as 17589636 + 11519236 = 4194^2 + 3394^2 .

It is a super-2 number, since 2×291088722 = 1694652858224768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29108873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2872 + ... + 8152.

Almost surely, 229108872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29108872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29948940).

29108872 is an abundant number, since it is smaller than the sum of its proper divisors (30789008).

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

29108872 is a wasteful number, since it uses less digits than its factorization.

29108872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353 (or 5349 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 29108872 is about 5395.2638489698. The cubic root of 29108872 is about 307.6156728762.

The spelling of 29108872 in words is "twenty-nine million, one hundred eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 53 104 106 212 424 689 1378 2756 5281 5512 10562 21124 42248 68653 137306 274612 279893 549224 559786 1119572 2239144 3638609 7277218 14554436 29108872