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129914851794 = 23721333991327
BaseRepresentation
bin111100011111110000…
…1110101000111010010
3110102022222201021020120
41320333201311013102
54112031200224134
6135403154051110
712246261006600
oct1707741650722
9412288637216
10129914851794
1150107602012
1221218279a96
13c335361090
146406062870
1535a5644649
hex1e3f8751d2

129914851794 has 48 divisors (see below), whose sum is σ = 325500956928. Its totient is φ = 34263256608.

The previous prime is 129914851783. The next prime is 129914851831. The reversal of 129914851794 is 497158419921.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16991842 + ... + 16999485.

It is an arithmetic number, because the mean of its divisors is an integer number (6781269936).

Almost surely, 2129914851794 is an apocalyptic number.

129914851794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129914851794 is an abundant number, since it is smaller than the sum of its proper divisors (195586105134).

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

129914851794 is a wasteful number, since it uses less digits than its factorization.

129914851794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33991359 (or 33991352 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 60.

The spelling of 129914851794 in words is "one hundred twenty-nine billion, nine hundred fourteen million, eight hundred fifty-one thousand, seven hundred ninety-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 49 78 91 98 147 182 273 294 546 637 1274 1911 3822 33991327 67982654 101973981 203947962 237939289 441887251 475878578 713817867 883774502 1325661753 1427635734 1665575023 2651323506 3093210757 3331150046 4996725069 6186421514 9279632271 9993450138 18559264542 21652475299 43304950598 64957425897 129914851794