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8134128 = 243319991
BaseRepresentation
bin11111000001110111110000
3120022020221000
4133001313300
54040243003
6450202000
7126065442
oct37016760
916266830
108134128
114656322
122883300
1318ba4c2
14111a492
15aaa1a3
hex7c1df0

8134128 has 80 divisors (see below), whose sum is σ = 24601600. Its totient is φ = 2566080.

The previous prime is 8134127. The next prime is 8134151. The reversal of 8134128 is 8214318.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8134127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7713 + ... + 8703.

It is an arithmetic number, because the mean of its divisors is an integer number (307520).

Almost surely, 28134128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8134128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12300800).

8134128 is an abundant number, since it is smaller than the sum of its proper divisors (16467472).

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

8134128 is a wasteful number, since it uses less digits than its factorization.

8134128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1015 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 8134128 is about 2852.0392704169. The cubic root of 8134128 is about 201.1115442358. Note that the first 3 decimals are identical.

The spelling of 8134128 in words is "eight million, one hundred thirty-four thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 72 76 108 114 144 152 171 216 228 304 342 432 456 513 684 912 991 1026 1368 1982 2052 2736 2973 3964 4104 5946 7928 8208 8919 11892 15856 17838 18829 23784 26757 35676 37658 47568 53514 56487 71352 75316 107028 112974 142704 150632 169461 214056 225948 301264 338922 428112 451896 508383 677844 903792 1016766 1355688 2033532 2711376 4067064 8134128