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11980254055 = 5711260911927
BaseRepresentation
bin10110010100001010…
…00010101101100111
31010220220221222000011
423022011002231213
5144013421112210
65300442231051
7602611323250
oct131205025547
933826858004
1011980254055
1150985a5210
1223a41b5487
13118c03cc33
1481915bb27
154a1b6ed8a
hex2ca142b67

11980254055 has 32 divisors (see below), whose sum is σ = 17932078080. Its totient is φ = 7464721920.

The previous prime is 11980254047. The next prime is 11980254073. The reversal of 11980254055 is 55045208911.

It is not a de Polignac number, because 11980254055 - 23 = 11980254047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11980253999 and 11980254017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998502 + ... + 1010428.

It is an arithmetic number, because the mean of its divisors is an integer number (560377440).

Almost surely, 211980254055 is an apocalyptic number.

11980254055 is a deficient number, since it is larger than the sum of its proper divisors (5951824025).

11980254055 is a wasteful number, since it uses less digits than its factorization.

11980254055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14559.

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 11980254055 in words is "eleven billion, nine hundred eighty million, two hundred fifty-four thousand, fifty-five".

Divisors: 1 5 7 11 35 55 77 385 2609 11927 13045 18263 28699 59635 83489 91315 131197 143495 200893 417445 655985 918379 1004465 4591895 31117543 155587715 217822801 342292973 1089114005 1711464865 2396050811 11980254055