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2130210212 = 2213229178889
BaseRepresentation
bin111111011111000…
…0110110110100100
312111110100220001112
41332332012312210
513330313211322
6551213444152
7103534326254
oct17676066644
95443326045
102130210212
119a34a2509
124b54a0658
1327c437720
14162cb1964
15c70335e2
hex7ef86da4

2130210212 has 24 divisors (see below), whose sum is σ = 4032180600. Its totient is φ = 978875136.

The previous prime is 2130210209. The next prime is 2130210223. The reversal of 2130210212 is 2120120312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34035556 + 2096174656 = 5834^2 + 45784^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77537 + ... + 101352.

It is an arithmetic number, because the mean of its divisors is an integer number (168007525).

Almost surely, 22130210212 is an apocalyptic number.

It is an amenable number.

2130210212 is a deficient number, since it is larger than the sum of its proper divisors (1901970388).

2130210212 is a wasteful number, since it uses less digits than its factorization.

2130210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179135 (or 179133 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2130210212 is about 46154.2003722305. The cubic root of 2130210212 is about 1286.6906767364.

Adding to 2130210212 its reverse (2120120312), we get a palindrome (4250330524).

The spelling of 2130210212 in words is "two billion, one hundred thirty million, two hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 229 458 916 2977 5954 11908 178889 357778 715556 2325557 4651114 9302228 40965581 81931162 163862324 532552553 1065105106 2130210212