Search a number
-
+
17970630 = 235599021
BaseRepresentation
bin100010010001…
…1010111000110
31020211000001220
41010203113012
514100030010
61441101210
7305514336
oct104432706
936730056
1017970630
11a164667
126027806
133952812
14255b0c6
15189e970
hex11235c6

17970630 has 16 divisors (see below), whose sum is σ = 43129584. Its totient is φ = 4792160.

The previous prime is 17970619. The next prime is 17970653. The reversal of 17970630 is 3607971.

It is a junction number, because it is equal to n+sod(n) for n = 17970591 and 17970600.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 299481 + ... + 299540.

It is an arithmetic number, because the mean of its divisors is an integer number (2695599).

Almost surely, 217970630 is an apocalyptic number.

17970630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17970630 is an abundant number, since it is smaller than the sum of its proper divisors (25158954).

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

17970630 is a wasteful number, since it uses less digits than its factorization.

17970630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599031.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 17970630 is about 4239.1779863554. The cubic root of 17970630 is about 261.9315226125.

The spelling of 17970630 in words is "seventeen million, nine hundred seventy thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 599021 1198042 1797063 2995105 3594126 5990210 8985315 17970630