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29108312064 = 211331340493
BaseRepresentation
bin11011000110111111…
…011001100000000000
32210010121102110111000
4123012333121200000
5434103211441224
621212220052000
72050221366366
oct330677314000
983117373430
1029108312064
1111387979757
125784394000
13298b71bbc0
1415a1c53636
15b556e00c9
hex6c6fd9800

29108312064 has 192 divisors, whose sum is σ = 92860840800. Its totient is φ = 8956182528.

The previous prime is 29108312029. The next prime is 29108312089. The reversal of 29108312064 is 46021380192.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698602 + ... + 739094.

Almost surely, 229108312064 is an apocalyptic number.

29108312064 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 29108312064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46430420400).

29108312064 is an abundant number, since it is smaller than the sum of its proper divisors (63752528736).

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

29108312064 is a wasteful number, since it uses less digits than its factorization.

29108312064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40537 (or 40511 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 29108312064 in words is "twenty-nine billion, one hundred eight million, three hundred twelve thousand, sixty-four".