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29013940800 = 26345213171013
BaseRepresentation
bin11011000001010111…
…011001101001000000
32202220000211220110000
4123001113121221000
5433410032101200
621155005240000
72044664266455
oct330127315100
982800756400
1029013940800
1111339682179
125758863000
132974cc9410
1415934c982c
15b4c29d300
hex6c15d9a40

29013940800 has 840 divisors, whose sum is σ = 121727662056. Its totient is φ = 6715146240.

The previous prime is 29013940751. The next prime is 29013940819. The reversal of 29013940800 is 804931092.

It can be written as a sum of positive squares in 12 ways, for example, as 19269881856 + 9744058944 = 138816^2 + 98712^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 28641094 + ... + 28642106.

Almost surely, 229013940800 is an apocalyptic number.

29013940800 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 29013940800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60863831028).

29013940800 is an abundant number, since it is smaller than the sum of its proper divisors (92713721256).

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

29013940800 is a wasteful number, since it uses less digits than its factorization.

29013940800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 29013940800 in words is "twenty-nine billion, thirteen million, nine hundred forty thousand, eight hundred".