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2138450 = 252192251
BaseRepresentation
bin1000001010000101010010
311000122101212
420022011102
51021412300
6113500122
724114356
oct10120522
94018355
102138450
111230716
12871642
1359b472
143d9466
152c3935
hex20a152

2138450 has 24 divisors (see below), whose sum is σ = 4188720. Its totient is φ = 810000.

The previous prime is 2138429. The next prime is 2138467. The reversal of 2138450 is 548312.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 176 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (174530).

22138450 is an apocalyptic number.

2138450 is a deficient number, since it is larger than the sum of its proper divisors (2050270).

2138450 is a wasteful number, since it uses less digits than its factorization.

2138450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2138450 is about 1462.3440087750. The cubic root of 2138450 is about 128.8347542622.

The spelling of 2138450 in words is "two million, one hundred thirty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 2251 4502 11255 22510 42769 56275 85538 112550 213845 427690 1069225 2138450