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538000170 = 23529653947
BaseRepresentation
bin100000000100010…
…011101100101010
31101111100020111020
4200010103230222
52100212001140
6125215113310
716221632421
oct4004235452
91344306436
10538000170
11256761544
12130212836
13875cb5c6
14516482b8
15323726d0
hex20113b2a

538000170 has 64 divisors (see below), whose sum is σ = 1339182720. Its totient is φ = 138161408.

The previous prime is 538000159. The next prime is 538000171. The reversal of 538000170 is 71000835.

It is a self number, because there is not a number n which added to its sum of digits gives 538000170.

It is not an unprimeable number, because it can be changed into a prime (538000171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567637 + ... + 568583.

It is an arithmetic number, because the mean of its divisors is an integer number (20924730).

Almost surely, 2538000170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538000170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669591360).

538000170 is an abundant number, since it is smaller than the sum of its proper divisors (801182550).

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

538000170 is a wasteful number, since it uses less digits than its factorization.

538000170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 538000170 is about 23194.8306740963. The cubic root of 538000170 is about 813.3187870655.

The spelling of 538000170 in words is "five hundred thirty-eight million, one hundred seventy", and thus it is an aban number.

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 653 870 947 1306 1894 1959 2841 3265 3918 4735 5682 6530 9470 9795 14205 18937 19590 27463 28410 37874 54926 56811 82389 94685 113622 137315 164778 189370 274630 284055 411945 568110 618391 823890 1236782 1855173 3091955 3710346 6183910 9275865 17933339 18551730 35866678 53800017 89666695 107600034 179333390 269000085 538000170