[go: up one dir, main page]

Search a number
-
+
30201222 = 23194361101
BaseRepresentation
bin111001100110…
…1010110000110
32002211101021210
41303031112012
530212414342
62555152250
7514464132
oct163152606
962741253
1030201222
1116058697
12a145686
13634575c
1440223c2
1529b879c
hex1ccd586

30201222 has 64 divisors (see below), whose sum is σ = 66781440. Its totient is φ = 9072000.

The previous prime is 30201221. The next prime is 30201229. The reversal of 30201222 is 22210203.

It is a super-2 number, since 2×302012222 = 1824227620586568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30201198 and 30201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201221) 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 31 ways as a sum of consecutive naturals, for example, 298972 + ... + 299072.

It is an arithmetic number, because the mean of its divisors is an integer number (1043460).

Almost surely, 230201222 is an apocalyptic number.

30201222 is an abundant number, since it is smaller than the sum of its proper divisors (36580218).

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

30201222 is a wasteful number, since it uses less digits than its factorization.

30201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30201222 is about 5495.5638473227. The cubic root of 30201222 is about 311.4164181573.

Adding to 30201222 its reverse (22210203), we get a palindrome (52411425).

The spelling of 30201222 in words is "thirty million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 19 38 43 57 61 86 101 114 122 129 183 202 258 303 366 606 817 1159 1634 1919 2318 2451 2623 3477 3838 4343 4902 5246 5757 6161 6954 7869 8686 11514 12322 13029 15738 18483 26058 36966 49837 82517 99674 117059 149511 165034 234118 247551 264923 299022 351177 495102 529846 702354 794769 1589538 5033537 10067074 15100611 30201222