Search a number
-
+
20862914 = 219354049
BaseRepresentation
bin100111110010…
…1011111000010
31110020221112112
41033211133002
520320103124
62023055322
7342221552
oct117453702
943227475
1020862914
111085a686
126ba1542
134426127
142ab1162
151c7190e
hex13e57c2

20862914 has 8 divisors (see below), whose sum is σ = 31457100. Its totient is φ = 10377216.

The previous prime is 20862913. The next prime is 20862917. The reversal of 20862914 is 41926802.

It can be written as a sum of positive squares in 2 ways, for example, as 20097289 + 765625 = 4483^2 + 875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×208629143 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20862913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26639 + ... + 27410.

Almost surely, 220862914 is an apocalyptic number.

20862914 is a deficient number, since it is larger than the sum of its proper divisors (10594186).

20862914 is a wasteful number, since it uses less digits than its factorization.

20862914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54244.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20862914 is about 4567.5938961339. The cubic root of 20862914 is about 275.2907734318.

The spelling of 20862914 in words is "twenty million, eight hundred sixty-two thousand, nine hundred fourteen".

Divisors: 1 2 193 386 54049 108098 10431457 20862914