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29994825280 = 2657293891187
BaseRepresentation
bin11011111011110101…
…001011011001000000
32212102101112222222211
4123323311023121000
5442412133402110
621440205111504
72111204544130
oct337365133100
985371488884
1029994825280
11117a232a202
125991258594
132aa02a2934
14164789cac0
15ba845598a
hex6fbd4b640

29994825280 has 224 divisors, whose sum is σ = 84731961600. Its totient is φ = 9895452672.

The previous prime is 29994825269. The next prime is 29994825281. The reversal of 29994825280 is 8252849992.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (29994825281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25268847 + ... + 25270033.

Almost surely, 229994825280 is an apocalyptic number.

29994825280 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 29994825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42365980800).

29994825280 is an abundant number, since it is smaller than the sum of its proper divisors (54737136320).

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

29994825280 is a wasteful number, since it uses less digits than its factorization.

29994825280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 29994825280 in words is "twenty-nine billion, nine hundred ninety-four million, eight hundred twenty-five thousand, two hundred eighty".