Search a number
-
+
17939048 = 232242381
BaseRepresentation
bin100010001101…
…1101001101000
31020202101202012
41010123221220
514043022143
61440255052
7305323301
oct104335150
936671665
1017939048
11a142966
126011488
13394132a
14254d7a8
151895418
hex111ba68

17939048 has 8 divisors (see below), whose sum is σ = 33635730. Its totient is φ = 8969520.

The previous prime is 17939027. The next prime is 17939071. The reversal of 17939048 is 84093971.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17623204 + 315844 = 4198^2 + 562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 17938996 and 17939014.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1121183 + ... + 1121198.

Almost surely, 217939048 is an apocalyptic number.

It is an amenable number.

17939048 is a deficient number, since it is larger than the sum of its proper divisors (15696682).

17939048 is a wasteful number, since it uses less digits than its factorization.

17939048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242387 (or 2242383 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 17939048 is about 4235.4513336833. The cubic root of 17939048 is about 261.7779911360. Note that the first 3 decimals are identical.

The spelling of 17939048 in words is "seventeen million, nine hundred thirty-nine thousand, forty-eight".

Divisors: 1 2 4 8 2242381 4484762 8969524 17939048