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29969280000 = 210325411243
BaseRepresentation
bin11011111010010011…
…101110110000000000
32212100121111011110100
4123322103232300000
5442334113430000
621433453402400
72110444451112
oct337223566000
985317434410
1029969280000
1111789971700
125984799400
132a97bca49a
14164432d3b2
15ba60aba00
hex6fa4eec00

29969280000 has 990 divisors, whose sum is σ = 121623233732. Its totient is φ = 7096320000.

The previous prime is 29969279999. The next prime is 29969280031. The reversal of 29969280000 is 8296992.

It is a tau number, because it is divible by the number of its divisors (990).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 89 ways as a sum of consecutive naturals, for example, 696959979 + ... + 696960021.

Almost surely, 229969280000 is an apocalyptic number.

29969280000 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 29969280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60811616866).

29969280000 is an abundant number, since it is smaller than the sum of its proper divisors (91653953732).

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

29969280000 is a wasteful number, since it uses less digits than its factorization.

29969280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 29969280000 in words is "twenty-nine billion, nine hundred sixty-nine million, two hundred eighty thousand".