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129307134 = 231121710477
BaseRepresentation
bin1111011010100…
…01000111111110
3100000022111001010
413231101013332
5231100312014
620455300050
73130043505
oct755210776
9300274033
10129307134
1166a99400
123737a626
1320a352c8
141325d83c
15b543359
hex7b511fe

129307134 has 48 divisors (see below), whose sum is σ = 301011984. Its totient is φ = 36875520.

The previous prime is 129307109. The next prime is 129307147. The reversal of 129307134 is 431703921.

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 7104 + ... + 17580.

It is an arithmetic number, because the mean of its divisors is an integer number (6271083).

Almost surely, 2129307134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129307134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150505992).

129307134 is an abundant number, since it is smaller than the sum of its proper divisors (171704850).

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

129307134 is a wasteful number, since it uses less digits than its factorization.

129307134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10521 (or 10510 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 129307134 is about 11371.3294737247. The cubic root of 129307134 is about 505.6781191675.

The spelling of 129307134 in words is "one hundred twenty-nine million, three hundred seven thousand, one hundred thirty-four".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 121 187 242 363 374 561 726 1122 2057 4114 6171 10477 12342 20954 31431 62862 115247 178109 230494 345741 356218 534327 691482 1068654 1267717 1959199 2535434 3803151 3918398 5877597 7606302 11755194 21551189 43102378 64653567 129307134