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30143202 = 23231131933
BaseRepresentation
bin111001011111…
…1001011100010
32002201102200220
41302333023202
530204040302
62554023510
7514133025
oct162771342
962642626
1030143202
1116019041
12a117b96
13632521b
1440091bc
1529a64bc
hex1cbf2e2

30143202 has 32 divisors (see below), whose sum is σ = 63497088. Its totient is φ = 9520896.

The previous prime is 30143189. The next prime is 30143207. The reversal of 30143202 is 20234103.

It is a super-2 number, since 2×301432022 = 1817225253625608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30143207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14628 + ... + 16560.

It is an arithmetic number, because the mean of its divisors is an integer number (1984284).

Almost surely, 230143202 is an apocalyptic number.

30143202 is an abundant number, since it is smaller than the sum of its proper divisors (33353886).

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

30143202 is a wasteful number, since it uses less digits than its factorization.

30143202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30143202 is about 5490.2825063925. The cubic root of 30143202 is about 311.2168681367.

Adding to 30143202 its reverse (20234103), we get a palindrome (50377305).

Subtracting from 30143202 its reverse (20234103), we obtain a palindrome (9909099).

It can be divided in two parts, 3014 and 3202, that added together give a triangular number (6216 = T111).

The spelling of 30143202 in words is "thirty million, one hundred forty-three thousand, two hundred two".

Divisors: 1 2 3 6 23 46 69 113 138 226 339 678 1933 2599 3866 5198 5799 7797 11598 15594 44459 88918 133377 218429 266754 436858 655287 1310574 5023867 10047734 15071601 30143202