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134906178 = 231123181491
BaseRepresentation
bin10000000101010…
…00000101000010
3100101211221111010
420002220011002
5234013444203
621215301350
73225453321
oct1002500502
9311757433
10134906178
116a173010
123921a856
1321c45954
1413cba0b8
15bc9c303
hex80a8142

134906178 has 64 divisors (see below), whose sum is σ = 309464064. Its totient is φ = 38808000.

The previous prime is 134906171. The next prime is 134906183. The reversal of 134906178 is 871609431.

It is not an unprimeable number, because it can be changed into a prime (134906171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274513 + ... + 275003.

It is an arithmetic number, because the mean of its divisors is an integer number (4835376).

Almost surely, 2134906178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134906178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154732032).

134906178 is an abundant number, since it is smaller than the sum of its proper divisors (174557886).

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

134906178 is a wasteful number, since it uses less digits than its factorization.

134906178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 134906178 is about 11614.9118808539. The cubic root of 134906178 is about 512.8739169338.

The spelling of 134906178 in words is "one hundred thirty-four million, nine hundred six thousand, one hundred seventy-eight".

Divisors: 1 2 3 6 11 22 23 33 46 66 69 138 181 253 362 491 506 543 759 982 1086 1473 1518 1991 2946 3982 4163 5401 5973 8326 10802 11293 11946 12489 16203 22586 24978 32406 33879 45793 67758 88871 91586 124223 137379 177742 248446 266613 274758 372669 533226 745338 977581 1955162 2044033 2932743 4088066 5865486 6132099 12264198 22484363 44968726 67453089 134906178