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1213114044 = 223101092837
BaseRepresentation
bin100100001001110…
…1010011010111100
310010112200120121210
41020103222122330
54441024122134
6320213124420
742030204432
oct11023523274
93115616553
101213114044
1157285359a
1229a329710
1316443657c
14b7184d52
157177b2e9
hex484ea6bc

1213114044 has 12 divisors (see below), whose sum is σ = 2830599464. Its totient is φ = 404371344.

The previous prime is 1213114031. The next prime is 1213114069. The reversal of 1213114044 is 4404113121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1213114044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50546407 + ... + 50546430.

Almost surely, 21213114044 is an apocalyptic number.

It is an amenable number.

1213114044 is an abundant number, since it is smaller than the sum of its proper divisors (1617485420).

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

1213114044 is a wasteful number, since it uses less digits than its factorization.

1213114044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101092844 (or 101092842 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1213114044 is about 34829.7867349199. The cubic root of 1213114044 is about 1066.5155947940.

Adding to 1213114044 its reverse (4404113121), we get a palindrome (5617227165).

The spelling of 1213114044 in words is "one billion, two hundred thirteen million, one hundred fourteen thousand, forty-four".

Divisors: 1 2 3 4 6 12 101092837 202185674 303278511 404371348 606557022 1213114044