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6986894085 = 33551754771
BaseRepresentation
bin1101000000111001…
…11000101100000101
3200000221001222212000
412200130320230011
5103302121102320
63113145215513
7335066422413
oct64034705405
920027058760
106986894085
112a65a12a36
12142ba91599
13874697772
144a3d082b3
152ad5cac90
hex1a0738b05

6986894085 has 16 divisors (see below), whose sum is σ = 12421145280. Its totient is φ = 3726343440.

The previous prime is 6986894081. The next prime is 6986894093. The reversal of 6986894085 is 5804986896.

It is not a de Polignac number, because 6986894085 - 22 = 6986894081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6986894081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25877251 + ... + 25877520.

It is an arithmetic number, because the mean of its divisors is an integer number (776321580).

Almost surely, 26986894085 is an apocalyptic number.

It is an amenable number.

6986894085 is a deficient number, since it is larger than the sum of its proper divisors (5434251195).

6986894085 is a wasteful number, since it uses less digits than its factorization.

6986894085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51754785 (or 51754779 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The square root of 6986894085 is about 83587.6431358128. The cubic root of 6986894085 is about 1911.7365934301.

The spelling of 6986894085 in words is "six billion, nine hundred eighty-six million, eight hundred ninety-four thousand, eighty-five".

Divisors: 1 3 5 9 15 27 45 135 51754771 155264313 258773855 465792939 776321565 1397378817 2328964695 6986894085