Search a number
-
+
20012925170 = 257285898931
BaseRepresentation
bin10010101000110111…
…010000000011110010
31220122201211221020202
4102220313100003302
5311441302101140
613105510235202
71305640025420
oct225067200362
956581757222
1020012925170
11853a857987
123a66355b02
131b6c281a74
14d7bccc110
157c1e70915
hex4a8dd00f2

20012925170 has 16 divisors (see below), whose sum is σ = 41169446208. Its totient is φ = 6861574320.

The previous prime is 20012925047. The next prime is 20012925173. The reversal of 20012925170 is 7152921002.

It is not an unprimeable number, because it can be changed into a prime (20012925173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142949396 + ... + 142949535.

It is an arithmetic number, because the mean of its divisors is an integer number (2573090388).

Almost surely, 220012925170 is an apocalyptic number.

20012925170 is an abundant number, since it is smaller than the sum of its proper divisors (21156521038).

20012925170 is a wasteful number, since it uses less digits than its factorization.

20012925170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285898945.

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 20012925170 in words is "twenty billion, twelve million, nine hundred twenty-five thousand, one hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 285898931 571797862 1429494655 2001292517 2858989310 4002585034 10006462585 20012925170