Search a number
-
+
20002960 = 245250037
BaseRepresentation
bin100110001001…
…1100010010000
31101122020220101
41030103202100
520110043320
61552422144
7332010445
oct114234220
941566811
1020002960
111032257a
126847954
1341b4893
1429299cc
151b51c0a
hex1313890

20002960 has 20 divisors (see below), whose sum is σ = 46507068. Its totient is φ = 8001152.

The previous prime is 20002951. The next prime is 20002979. The reversal of 20002960 is 6920002.

It can be written as a sum of positive squares in 2 ways, for example, as 2262016 + 17740944 = 1504^2 + 4212^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124939 + ... + 125098.

Almost surely, 220002960 is an apocalyptic number.

20002960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002960 is an abundant number, since it is smaller than the sum of its proper divisors (26504108).

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

20002960 is a wasteful number, since it uses less digits than its factorization.

20002960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250050 (or 250044 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20002960 is about 4472.4668808164. The cubic root of 20002960 is about 271.4551521258.

Adding to 20002960 its reverse (6920002), we get a palindrome (26922962).

The spelling of 20002960 in words is "twenty million, two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 250037 500074 1000148 1250185 2000296 2500370 4000592 5000740 10001480 20002960