Search a number
-
+
20290701 = 319333499
BaseRepresentation
bin100110101100…
…1110010001101
31102011212121110
41031121302031
520143300301
62002522233
7334316364
oct115316215
942155543
1020290701
11104a9782
126966379
134285842
1429a27db
151bac0d6
hex1359c8d

20290701 has 8 divisors (see below), whose sum is σ = 27076000. Its totient is φ = 13516272.

The previous prime is 20290693. The next prime is 20290747. The reversal of 20290701 is 10709202.

It is a happy number.

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

It is not a de Polignac number, because 20290701 - 23 = 20290693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20290001) 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, 4050 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (3384500).

Almost surely, 220290701 is an apocalyptic number.

It is an amenable number.

20290701 is a deficient number, since it is larger than the sum of its proper divisors (6785299).

20290701 is a wasteful number, since it uses less digits than its factorization.

20290701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 20290701 is about 4504.5200632254. The cubic root of 20290701 is about 272.7505806040.

Adding to 20290701 its reverse (10709202), we get a palindrome (30999903).

The spelling of 20290701 in words is "twenty million, two hundred ninety thousand, seven hundred one".

Divisors: 1 3 1933 3499 5799 10497 6763567 20290701