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108706143 = 37131759397
BaseRepresentation
bin1100111101010…
…11100101011111
321120112211210110
412132223211133
5210312044033
614441541103
72456662350
oct636534537
9246484713
10108706143
11563a8597
12304a4793
13196a1480
1410619d27
159824363
hex67ab95f

108706143 has 64 divisors (see below), whose sum is σ = 192568320. Its totient is φ = 52918272.

The previous prime is 108706141. The next prime is 108706153. The reversal of 108706143 is 341607801.

It is a happy number.

It is not a de Polignac number, because 108706143 - 21 = 108706141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108706143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108706141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 273621 + ... + 274017.

It is an arithmetic number, because the mean of its divisors is an integer number (3008880).

Almost surely, 2108706143 is an apocalyptic number.

108706143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

108706143 is a deficient number, since it is larger than the sum of its proper divisors (83862177).

108706143 is a wasteful number, since it uses less digits than its factorization.

108706143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 108706143 is about 10426.2238130591. The cubic root of 108706143 is about 477.2559618469.

The spelling of 108706143 in words is "one hundred eight million, seven hundred six thousand, one hundred forty-three".

Divisors: 1 3 7 13 17 21 39 51 59 91 119 177 221 273 357 397 413 663 767 1003 1191 1239 1547 2301 2779 3009 4641 5161 5369 6749 7021 8337 13039 15483 16107 20247 21063 23423 36127 39117 47243 70269 87737 91273 108381 141729 163961 263211 273819 304499 398191 491883 614159 913497 1194573 1842477 2131493 2787337 5176483 6394479 8362011 15529449 36235381 108706143