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29287687104 = 2634131989257
BaseRepresentation
bin11011010001101011…
…101010001111000000
32210121002221122210000
4123101223222033000
5434440121441404
621242104440000
72054530142604
oct332153521700
983532848700
1029287687104
111146a154895
125814479000
1329b9934490
1415bb9c7504
15b66323339
hex6d1aea3c0

29287687104 has 560 divisors, whose sum is σ = 99910087200. Its totient is φ = 8408530944.

The previous prime is 29287687103. The next prime is 29287687109. The reversal of 29287687104 is 40178678292.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29287687103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 113959744 + ... + 113960000.

It is an arithmetic number, because the mean of its divisors is an integer number (178410870).

Almost surely, 229287687104 is an apocalyptic number.

29287687104 is a gapful number since it is divisible by the number (24) 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 29287687104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49955043600).

29287687104 is an abundant number, since it is smaller than the sum of its proper divisors (70622400096).

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

29287687104 is a wasteful number, since it uses less digits than its factorization.

29287687104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 29287687104 in words is "twenty-nine billion, two hundred eighty-seven million, six hundred eighty-seven thousand, one hundred four".