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212301130 = 25138115373
BaseRepresentation
bin11001010011101…
…11010101001010
3112210111000101211
430221313111022
5413322114010
633022203334
75155346506
oct1451672512
9483430354
10212301130
11a9924a88
125b12354a
1334ca3392
14202a5306
151398908a
hexca7754a

212301130 has 16 divisors (see below), whose sum is σ = 382443624. Its totient is φ = 84853440.

The previous prime is 212301073. The next prime is 212301139. The reversal of 212301130 is 31103212.

It can be written as a sum of positive squares in 4 ways, for example, as 99580441 + 112720689 = 9979^2 + 10617^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212301130.

It is not an unprimeable number, because it can be changed into a prime (212301139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6124 + ... + 21496.

Almost surely, 2212301130 is an apocalyptic number.

212301130 is a deficient number, since it is larger than the sum of its proper divisors (170142494).

212301130 is a wasteful number, since it uses less digits than its factorization.

212301130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16761.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 212301130 is about 14570.5569557241. The cubic root of 212301130 is about 596.5553825658. Note that the first 3 decimals are identical.

Adding to 212301130 its reverse (31103212), we get a palindrome (243404342).

The spelling of 212301130 in words is "two hundred twelve million, three hundred one thousand, one hundred thirty".

Divisors: 1 2 5 10 1381 2762 6905 13810 15373 30746 76865 153730 21230113 42460226 106150565 212301130