Search a number
-
+
20202053 = 413731321
BaseRepresentation
bin100110100010…
…0001001000101
31102000101000012
41031010021011
520132431203
62001000005
7333500054
oct115041105
942011005
1020202053
1110449113
126923005
1342543a1
14297c39b
151b90bd8
hex1344245

20202053 has 8 divisors (see below), whose sum is σ = 20765976. Its totient is φ = 19641600.

The previous prime is 20202031. The next prime is 20202071. The reversal of 20202053 is 35020202.

It can be written as a sum of positive squares in 4 ways, for example, as 2879809 + 17322244 = 1697^2 + 4162^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20202053 - 210 = 20201029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202353) 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, 14633 + ... + 15953.

It is an arithmetic number, because the mean of its divisors is an integer number (2595747).

Almost surely, 220202053 is an apocalyptic number.

It is an amenable number.

20202053 is a deficient number, since it is larger than the sum of its proper divisors (563923).

20202053 is a wasteful number, since it uses less digits than its factorization.

20202053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20202053 is about 4494.6693982984. The cubic root of 20202053 is about 272.3527942692.

Adding to 20202053 its reverse (35020202), we get a palindrome (55222255).

The spelling of 20202053 in words is "twenty million, two hundred two thousand, fifty-three".

Divisors: 1 41 373 1321 15293 54161 492733 20202053