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202230130 = 25171577577
BaseRepresentation
bin11000000110111…
…00100101110010
3112002112100120211
430003130211302
5403232331010
632022254334
75003633134
oct1403344562
9462470524
10202230130
11a4176543
12578873aa
1332b883cb
141cc03054
1512b4a08a
hexc0dc972

202230130 has 32 divisors (see below), whose sum is σ = 387932976. Its totient is φ = 75638784.

The previous prime is 202230121. The next prime is 202230151. The reversal of 202230130 is 31032202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 31169889 + 171060241 = 5583^2 + 13079^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202230130.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 22902 + ... + 30478.

Almost surely, 2202230130 is an apocalyptic number.

202230130 is a deficient number, since it is larger than the sum of its proper divisors (185702846).

202230130 is a wasteful number, since it uses less digits than its factorization.

202230130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7758.

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

The square root of 202230130 is about 14220.7640441715. The cubic root of 202230130 is about 586.9691646914.

Adding to 202230130 its reverse (31032202), we get a palindrome (233262332).

The spelling of 202230130 in words is "two hundred two million, two hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 157 170 314 785 1570 2669 5338 7577 13345 15154 26690 37885 75770 128809 257618 644045 1189589 1288090 2379178 5947945 11895890 20223013 40446026 101115065 202230130