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129348285807 = 31322441147793
BaseRepresentation
bin111100001110111000…
…0100011010101101111
3110100212111121201211010
41320131300203111233
54104401130121212
6135231034400303
712226241200656
oct1703560432557
9410774551733
10129348285807
114a94680a664
122109a590093
13c274b70530
146390b0019d
153570a2d03c
hex1e1dc2356f

129348285807 has 16 divisors (see below), whose sum is σ = 185740405088. Its totient is φ = 79594859520.

The previous prime is 129348285791. The next prime is 129348285809. The reversal of 129348285807 is 708582843921.

It is not a de Polignac number, because 129348285807 - 24 = 129348285791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129348285809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801303 + ... + 949095.

It is an arithmetic number, because the mean of its divisors is an integer number (11608775318).

Almost surely, 2129348285807 is an apocalyptic number.

129348285807 is a deficient number, since it is larger than the sum of its proper divisors (56392119281).

129348285807 is a wasteful number, since it uses less digits than its factorization.

129348285807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170250.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 129348285807 in words is "one hundred twenty-nine billion, three hundred forty-eight million, two hundred eighty-five thousand, eight hundred seven".

Divisors: 1 3 13 39 22441 67323 147793 291733 443379 875199 1921309 5763927 3316622713 9949868139 43116095269 129348285807