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29880480 = 253578893
BaseRepresentation
bin111000111111…
…1000010100000
32002020002022110
41301333002200
530122133410
62544235320
7511660050
oct161770240
962202273
1029880480
1115959713
12a00bb40
136262776
143d7b560
152953720
hex1c7f0a0

29880480 has 96 divisors (see below), whose sum is σ = 107581824. Its totient is φ = 6829056.

The previous prime is 29880479. The next prime is 29880493. The reversal of 29880480 is 8408892.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087 + ... + 7806.

It is an arithmetic number, because the mean of its divisors is an integer number (1120644).

Almost surely, 229880480 is an apocalyptic number.

29880480 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 29880480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53790912).

29880480 is an abundant number, since it is smaller than the sum of its proper divisors (77701344).

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

29880480 is a wasteful number, since it uses less digits than its factorization.

29880480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8918 (or 8910 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 29880480 is about 5466.3040530142. The cubic root of 29880480 is about 310.3100609159.

The spelling of 29880480 in words is "twenty-nine million, eight hundred eighty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 8893 17786 26679 35572 44465 53358 62251 71144 88930 106716 124502 133395 142288 177860 186753 213432 249004 266790 284576 311255 355720 373506 426864 498008 533580 622510 711440 747012 853728 933765 996016 1067160 1245020 1422880 1494024 1867530 1992032 2134320 2490040 2988048 3735060 4268640 4980080 5976096 7470120 9960160 14940240 29880480