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29012000 = 25537253
BaseRepresentation
bin110111010101…
…1000000100000
32000120221222112
41232223000200
524411341000
62513454452
7501412043
oct156530040
960527875
1029012000
1115416166
129871428
13601a384
143bd2c5a
152831235
hex1bab020

29012000 has 48 divisors (see below), whose sum is σ = 71292312. Its totient is φ = 11603200.

The previous prime is 29011991. The next prime is 29012003. The reversal of 29012000 is 21092.

It can be written as a sum of positive squares in 4 ways, for example, as 11806096 + 17205904 = 3436^2 + 4148^2 .

It is a super-2 number, since 2×290120002 = 1683392288000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29012003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374 + ... + 7626.

Almost surely, 229012000 is an apocalyptic number.

29012000 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 29012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35646156).

29012000 is an abundant number, since it is smaller than the sum of its proper divisors (42280312).

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

29012000 is an equidigital number, since it uses as much as digits as its factorization.

29012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278 (or 7260 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 29012000 is about 5386.2788639282. The cubic root of 29012000 is about 307.2740535087.

Adding to 29012000 its reverse (21092), we get a palindrome (29033092).

The spelling of 29012000 in words is "twenty-nine million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 7253 14506 29012 36265 58024 72530 116048 145060 181325 232096 290120 362650 580240 725300 906625 1160480 1450600 1813250 2901200 3626500 5802400 7253000 14506000 29012000