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29141220 = 22354631049
BaseRepresentation
bin110111100101…
…0100011100100
32000211112020110
41233022203210
524430004340
62520333020
7502460553
oct157124344
960745213
1029141220
11154a4259
129914170
136064134
143c27d9a
152859680
hex1bca8e4

29141220 has 48 divisors (see below), whose sum is σ = 81849600. Its totient is φ = 7746816.

The previous prime is 29141183. The next prime is 29141243. The reversal of 29141220 is 2214192.

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 15 ways as a sum of consecutive naturals, for example, 27256 + ... + 28304.

It is an arithmetic number, because the mean of its divisors is an integer number (1705200).

Almost surely, 229141220 is an apocalyptic number.

29141220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29141220 is an abundant number, since it is smaller than the sum of its proper divisors (52708380).

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

29141220 is a wasteful number, since it uses less digits than its factorization.

29141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 29141220 is about 5398.2608310455. The cubic root of 29141220 is about 307.7295793632.

The spelling of 29141220 in words is "twenty-nine million, one hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 463 926 1049 1389 1852 2098 2315 2778 3147 4196 4630 5245 5556 6294 6945 9260 10490 12588 13890 15735 20980 27780 31470 62940 485687 971374 1457061 1942748 2428435 2914122 4856870 5828244 7285305 9713740 14570610 29141220