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129064301912 = 23713374791517
BaseRepresentation
bin111100000110011010…
…1001111010101011000
3110100010201020212011002
41320030311033111120
54103310430130122
6135142531524132
712216222315410
oct1701465172530
9410121225132
10129064301912
114a810485327
122101b459648
13c22b08c720
1463650d9640
153555b34992
hex1e0cd4f558

129064301912 has 64 divisors (see below), whose sum is σ = 305890509120. Its totient is φ = 49678437888.

The previous prime is 129064301909. The next prime is 129064301917. The reversal of 129064301912 is 219103460921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129064301917) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2368823 + ... + 2422694.

It is an arithmetic number, because the mean of its divisors is an integer number (4779539205).

Almost surely, 2129064301912 is an apocalyptic number.

It is an amenable number.

129064301912 is an abundant number, since it is smaller than the sum of its proper divisors (176826207208).

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

129064301912 is a wasteful number, since it uses less digits than its factorization.

129064301912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791580 (or 4791576 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 129064301912 in words is "one hundred twenty-nine billion, sixty-four million, three hundred one thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 13 14 26 28 37 52 56 74 91 104 148 182 259 296 364 481 518 728 962 1036 1924 2072 3367 3848 6734 13468 26936 4791517 9583034 19166068 33540619 38332136 62289721 67081238 124579442 134162476 177286129 249158884 268324952 354572258 436028047 498317768 709144516 872056094 1241002903 1418289032 1744112188 2304719677 2482005806 3488224376 4609439354 4964011612 9218878708 9928023224 16133037739 18437757416 32266075478 64532150956 129064301912