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11886280813 = 1117198937589
BaseRepresentation
bin10110001000111101…
…00100000001101101
31010200101010121221201
423010132210001231
5143320341441223
65243244125501
7600360501631
oct130436440155
933611117851
1011886280813
11504a54a780
122378836891
131175729674
1480a898dc1
154987aaead
hex2c47a406d

11886280813 has 32 divisors (see below), whose sum is σ = 14614992000. Its totient is φ = 9526302720.

The previous prime is 11886280807. The next prime is 11886280817. The reversal of 11886280813 is 31808268811.

It is not a de Polignac number, because 11886280813 - 25 = 11886280781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11886280817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297423 + ... + 335011.

It is an arithmetic number, because the mean of its divisors is an integer number (456718500).

Almost surely, 211886280813 is an apocalyptic number.

It is an amenable number.

11886280813 is a deficient number, since it is larger than the sum of its proper divisors (2728711187).

11886280813 is a wasteful number, since it uses less digits than its factorization.

11886280813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37725.

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 11886280813 in words is "eleven billion, eight hundred eighty-six million, two hundred eighty thousand, eight hundred thirteen".

Divisors: 1 11 17 19 89 187 209 323 979 1513 1691 3553 16643 18601 28747 37589 316217 413479 639013 714191 3345421 7029143 7856101 12141247 36799631 56872157 63562999 133553717 625593727 699192989 1080570983 11886280813