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29386069440 = 26357131747421
BaseRepresentation
bin11011010111100010…
…111101010111000000
32210211222001222222020
4123113202331113000
5440140313210230
621255541241440
72060133316560
oct332742752700
983758058866
1029386069440
111150a740a02
125841403280
132a0412c890
1415caab6da0
15b6eca8810
hex6d78bd5c0

29386069440 has 896 divisors, whose sum is σ = 124468420608. Its totient is φ = 5697699840.

The previous prime is 29386069333. The next prime is 29386069451. The reversal of 29386069440 is 4496068392.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 69800430 + ... + 69800850.

It is an arithmetic number, because the mean of its divisors is an integer number (138915648).

Almost surely, 229386069440 is an apocalyptic number.

29386069440 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 29386069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62234210304).

29386069440 is an abundant number, since it is smaller than the sum of its proper divisors (95082351168).

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

29386069440 is a wasteful number, since it uses less digits than its factorization.

29386069440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 29386069440 in words is "twenty-nine billion, three hundred eighty-six million, sixty-nine thousand, four hundred forty".