Search a number
-
+
30227210 = 25131571481
BaseRepresentation
bin111001101001…
…1101100001010
32002212200221022
41303103230022
530214232320
62555512442
7514632656
oct163235412
962780838
1030227210
1116076172
12a158722
136354530
14402ba66
1529c1325
hex1cd3b0a

30227210 has 32 divisors (see below), whose sum is σ = 59007312. Its totient is φ = 11082240.

The previous prime is 30227203. The next prime is 30227213. The reversal of 30227210 is 1272203.

It can be written as a sum of positive squares in 8 ways, for example, as 4084441 + 26142769 = 2021^2 + 5113^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30227213) 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 15 ways as a sum of consecutive naturals, for example, 19670 + ... + 21150.

Almost surely, 230227210 is an apocalyptic number.

30227210 is a deficient number, since it is larger than the sum of its proper divisors (28780102).

30227210 is a wasteful number, since it uses less digits than its factorization.

30227210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 30227210 is about 5497.9277914502. The cubic root of 30227210 is about 311.5057166370.

Adding to 30227210 its reverse (1272203), we get a palindrome (31499413).

The spelling of 30227210 in words is "thirty million, two hundred twenty-seven thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 157 314 785 1481 1570 2041 2962 4082 7405 10205 14810 19253 20410 38506 96265 192530 232517 465034 1162585 2325170 3022721 6045442 15113605 30227210