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202020313 = 1131159053
BaseRepresentation
bin11000000101010…
…01010111011001
3112002010200202211
430002221113121
5403204122223
632013555121
75002100335
oct1402512731
9462120684
10202020313
11a4042940
12577a5aa1
1332b13a61
141cb8a7c5
1512b07d0d
hexc0a95d9

202020313 has 8 divisors (see below), whose sum is σ = 221098176. Its totient is φ = 183061200.

The previous prime is 202020311. The next prime is 202020317. The reversal of 202020313 is 313020202.

It is a happy number.

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 202020313 - 21 = 202020311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202020293 and 202020302.

It is not an unprimeable number, because it can be changed into a prime (202020311) 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, 26106 + ... + 32947.

It is an arithmetic number, because the mean of its divisors is an integer number (27637272).

Almost surely, 2202020313 is an apocalyptic number.

It is an amenable number.

202020313 is a deficient number, since it is larger than the sum of its proper divisors (19077863).

202020313 is a wasteful number, since it uses less digits than its factorization.

202020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59375.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 202020313 is about 14213.3849944339. The cubic root of 202020313 is about 586.7660978092.

Adding to 202020313 its reverse (313020202), we get a palindrome (515040515).

The spelling of 202020313 in words is "two hundred two million, twenty thousand, three hundred thirteen".

Divisors: 1 11 311 3421 59053 649583 18365483 202020313