Search a number
-
+
20725014 = 235365173
BaseRepresentation
bin100111100001…
…1110100010110
31102222221101010
41033003310112
520301200024
62020113050
7341105532
oct117036426
942887333
1020725014
1110776012
126b35786
1343a842b
142a76bc2
151c45b29
hex13c3d16

20725014 has 16 divisors (see below), whose sum is σ = 42232752. Its totient is φ = 6777888.

The previous prime is 20725013. The next prime is 20725037. The reversal of 20725014 is 41052702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20725013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32269 + ... + 32904.

It is an arithmetic number, because the mean of its divisors is an integer number (2639547).

Almost surely, 220725014 is an apocalyptic number.

20725014 is an abundant number, since it is smaller than the sum of its proper divisors (21507738).

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

20725014 is a wasteful number, since it uses less digits than its factorization.

20725014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65231.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20725014 is about 4552.4733936620. The cubic root of 20725014 is about 274.6828917767.

Adding to 20725014 its reverse (41052702), we get a palindrome (61777716).

The spelling of 20725014 in words is "twenty million, seven hundred twenty-five thousand, fourteen".

Divisors: 1 2 3 6 53 106 159 318 65173 130346 195519 391038 3454169 6908338 10362507 20725014