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6986109933 = 3211155345439
BaseRepresentation
bin1101000000110011…
…11001001111101101
3200000212121011012100
412200121321033231
5103301421004213
63113120325313
7335056645305
oct64031711755
920025534170
106986109933
112a65527880
12142b773839
1387448187a
144a3b82605
152ad4c3773
hex1a06793ed

6986109933 has 24 divisors (see below), whose sum is σ = 11015746560. Its totient is φ = 4231186560.

The previous prime is 6986109919. The next prime is 6986109941. The reversal of 6986109933 is 3399016896.

It is not a de Polignac number, because 6986109933 - 25 = 6986109901 is a prime.

It is a super-2 number, since 2×69861099332 = 97611463991922528978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6986109933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986109233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131028 + ... + 176466.

It is an arithmetic number, because the mean of its divisors is an integer number (458989440).

Almost surely, 26986109933 is an apocalyptic number.

It is an amenable number.

6986109933 is a deficient number, since it is larger than the sum of its proper divisors (4029636627).

6986109933 is a wasteful number, since it uses less digits than its factorization.

6986109933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47009 (or 47006 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 6986109933 is about 83582.9524065763. The cubic root of 6986109933 is about 1911.6650715139.

The spelling of 6986109933 in words is "six billion, nine hundred eighty-six million, one hundred nine thousand, nine hundred thirty-three".

Divisors: 1 3 9 11 33 99 1553 4659 13977 17083 45439 51249 136317 153747 408951 499829 1499487 4498461 70566767 211700301 635100903 776234437 2328703311 6986109933