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2215041212 = 221061521923
BaseRepresentation
bin1000010000000110…
…1101100010111100
312201100222202022102
42010001231202330
514014022304322
61003444004232
7105614353046
oct20401554274
95640882272
102215041212
11a3737327a
12519990678
13293b99997
14170274a96
15ce6dd792
hex8406d8bc

2215041212 has 12 divisors (see below), whose sum is σ = 3879983016. Its totient is φ = 1106474640.

The previous prime is 2215041203. The next prime is 2215041247. The reversal of 2215041212 is 2121405122.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 256718 + ... + 265205.

It is an arithmetic number, because the mean of its divisors is an integer number (323331918).

Almost surely, 22215041212 is an apocalyptic number.

It is an amenable number.

2215041212 is a deficient number, since it is larger than the sum of its proper divisors (1664941804).

2215041212 is a wasteful number, since it uses less digits than its factorization.

2215041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522988 (or 522986 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215041212 is about 47064.2243322887. The cubic root of 2215041212 is about 1303.5487283560.

Adding to 2215041212 its reverse (2121405122), we get a palindrome (4336446334).

The spelling of 2215041212 in words is "two billion, two hundred fifteen million, forty-one thousand, two hundred twelve".

Divisors: 1 2 4 1061 2122 4244 521923 1043846 2087692 553760303 1107520606 2215041212