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12211000004 = 2273531235431
BaseRepresentation
bin10110101111101010…
…10001001011000100
31011112000011001221102
423113311101023010
5200002004000004
65335404035232
7611412534050
oct132765211304
934460131842
1012211000004
1151a6878045
122449532b18
1311c7aa08b8
1483ba64c60
154b704e11e
hex2d7d512c4

12211000004 has 24 divisors (see below), whose sum is σ = 24491203968. Its totient is φ = 5218456320.

The previous prime is 12211000003. The next prime is 12211000027. The reversal of 12211000004 is 40000011221.

12211000004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12211000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607832 + ... + 627599.

It is an arithmetic number, because the mean of its divisors is an integer number (1020466832).

Almost surely, 212211000004 is an apocalyptic number.

12211000004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12211000004 is an abundant number, since it is smaller than the sum of its proper divisors (12280203964).

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

12211000004 is a wasteful number, since it uses less digits than its factorization.

12211000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235795 (or 1235793 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12211000004 its reverse (40000011221), we get a palindrome (52211011225).

The spelling of 12211000004 in words is "twelve billion, two hundred eleven million, four", and thus it is an aban number.

Divisors: 1 2 4 7 14 28 353 706 1412 2471 4942 9884 1235431 2470862 4941724 8648017 17296034 34592068 436107143 872214286 1744428572 3052750001 6105500002 12211000004