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2130312212 = 22783699091
BaseRepresentation
bin111111011111001…
…1111110000010100
312111110120001222022
41332332133300110
513330324442322
6551215552312
7103535232530
oct17676376024
95443501868
102130312212
119a3562106
124b552b698
1327c471c92
14162cdabc0
15c7053942
hex7ef9fc14

2130312212 has 24 divisors (see below), whose sum is σ = 4261602240. Its totient is φ = 912781440.

The previous prime is 2130312161. The next prime is 2130312227. The reversal of 2130312212 is 2122130312.

It is a super-3 number, since 3×21303122123 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229787 + ... + 238877.

It is an arithmetic number, because the mean of its divisors is an integer number (177566760).

Almost surely, 22130312212 is an apocalyptic number.

It is an amenable number.

2130312212 is an abundant number, since it is smaller than the sum of its proper divisors (2131290028).

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

2130312212 is a wasteful number, since it uses less digits than its factorization.

2130312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17471 (or 17469 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2130312212 is about 46155.3053505228. The cubic root of 2130312212 is about 1286.7112131063.

Adding to 2130312212 its reverse (2122130312), we get a palindrome (4252442524).

The spelling of 2130312212 in words is "two billion, one hundred thirty million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 8369 9091 16738 18182 33476 36364 58583 63637 117166 127274 234332 254548 76082579 152165158 304330316 532578053 1065156106 2130312212