Search a number
-
+
30920050 = 2527232167
BaseRepresentation
bin111010111110…
…0110101110010
32011011220100001
41311330311302
530403420200
63022420214
7523546630
oct165746562
964156301
1030920050
11164a9767
12a43166a
1365379b5
14416c350
152aab76a
hex1d7cd72

30920050 has 72 divisors (see below), whose sum is σ = 69120576. Its totient is φ = 10079520.

The previous prime is 30920017. The next prime is 30920069. The reversal of 30920050 is 5002903.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185067 + ... + 185233.

It is an arithmetic number, because the mean of its divisors is an integer number (960008).

Almost surely, 230920050 is an apocalyptic number.

30920050 is an abundant number, since it is smaller than the sum of its proper divisors (38200526).

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

30920050 is a wasteful number, since it uses less digits than its factorization.

30920050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 30920050 is about 5560.5800057188. The cubic root of 30920050 is about 313.8677753424.

Adding to 30920050 its reverse (5002903), we get a palindrome (35922953).

The spelling of 30920050 in words is "thirty million, nine hundred twenty thousand, fifty".

Divisors: 1 2 5 7 10 14 23 25 35 46 50 70 115 161 167 175 230 322 334 350 529 575 805 835 1058 1150 1169 1610 1670 2338 2645 3703 3841 4025 4175 5290 5845 7406 7682 8050 8350 11690 13225 18515 19205 26450 26887 29225 37030 38410 53774 58450 88343 92575 96025 134435 176686 185150 192050 268870 441715 618401 672175 883430 1236802 1344350 2208575 3092005 4417150 6184010 15460025 30920050