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29099080 = 235312757
BaseRepresentation
bin110111100000…
…0010001001000
32000202101102201
41233000101020
524422132310
62515405544
7502223653
oct157002110
960671381
1029099080
111547562a
1298b38b4
13604abba
143c1689a
15284be3a
hex1bc0448

29099080 has 48 divisors (see below), whose sum is σ = 67742460. Its totient is φ = 11249280.

The previous prime is 29099069. The next prime is 29099101. The reversal of 29099080 is 8099092.

It can be written as a sum of positive squares in 2 ways, for example, as 29095236 + 3844 = 5394^2 + 62^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38062 + ... + 38818.

Almost surely, 229099080 is an apocalyptic number.

29099080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29099080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33871230).

29099080 is an abundant number, since it is smaller than the sum of its proper divisors (38643380).

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

29099080 is a wasteful number, since it uses less digits than its factorization.

29099080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 29099080 is about 5394.3563100707. The cubic root of 29099080 is about 307.5811758279.

The spelling of 29099080 in words is "twenty-nine million, ninety-nine thousand, eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 757 961 1240 1514 1922 3028 3785 3844 4805 6056 7570 7688 9610 15140 19220 23467 30280 38440 46934 93868 117335 187736 234670 469340 727477 938680 1454954 2909908 3637385 5819816 7274770 14549540 29099080