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202302020 = 22523439787
BaseRepresentation
bin11000000111011…
…10001001000100
3112002200000012102
430003232021010
5403242131040
632024011232
75004352544
oct1403561104
9462600172
10202302020
11a4215558
1257900b18
1332bb204b
141cc21324
1512b61515
hexc0ee244

202302020 has 24 divisors (see below), whose sum is σ = 443306304. Its totient is φ = 77402336.

The previous prime is 202301927. The next prime is 202302029. The reversal of 202302020 is 20203202.

It is a super-2 number, since 2×2023020202 = 81852214592160800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202301992 and 202302010.

It is not an unprimeable number, because it can be changed into a prime (202302029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219434 + ... + 220353.

It is an arithmetic number, because the mean of its divisors is an integer number (18471096).

Almost surely, 2202302020 is an apocalyptic number.

202302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202302020 is an abundant number, since it is smaller than the sum of its proper divisors (241004284).

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

202302020 is a wasteful number, since it uses less digits than its factorization.

202302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439819 (or 439817 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 202302020 is about 14223.2914615429. The cubic root of 202302020 is about 587.0387095775.

Adding to 202302020 its reverse (20203202), we get a palindrome (222505222).

The spelling of 202302020 in words is "two hundred two million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 439787 879574 1759148 2198935 4397870 8795740 10115101 20230202 40460404 50575505 101151010 202302020