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34128190 = 2519317683
BaseRepresentation
bin1000001000110…
…0000100111110
32101012220002001
42002030010332
532214100230
63215252514
7563041045
oct202140476
971186061
1034128190
11182a0018
12b51a13a
1370bbcc5
14476555c
152ee20ca
hex208c13e

34128190 has 16 divisors (see below), whose sum is σ = 61752528. Its totient is φ = 13579776.

The previous prime is 34128169. The next prime is 34128217. The reversal of 34128190 is 9182143.

It is a happy number.

It is a super-2 number, since 2×341281902 = 2329466705352200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6912 + ... + 10771.

It is an arithmetic number, because the mean of its divisors is an integer number (3859533).

Almost surely, 234128190 is an apocalyptic number.

34128190 is a deficient number, since it is larger than the sum of its proper divisors (27624338).

34128190 is a wasteful number, since it uses less digits than its factorization.

34128190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17883.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 34128190 is about 5841.9337551876. The cubic root of 34128190 is about 324.3678124912.

The spelling of 34128190 in words is "thirty-four million, one hundred twenty-eight thousand, one hundred ninety".

Divisors: 1 2 5 10 193 386 965 1930 17683 35366 88415 176830 3412819 6825638 17064095 34128190