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6893666497 = 139269331557
BaseRepresentation
bin1100110101110010…
…10000000011000001
3122210102122112122101
412122321100003001
5103104234311442
63100015110401
7332555125024
oct63271200301
918712575571
106893666497
112a18327743
121404812401
1385b285703
1449579b1bb
152a5312cb7
hex19ae500c1

6893666497 has 16 divisors (see below), whose sum is σ = 7002676800. Its totient is φ = 6785824320.

The previous prime is 6893666477. The next prime is 6893666573. The reversal of 6893666497 is 7946663986.

It is not a de Polignac number, because 6893666497 - 27 = 6893666369 is a prime.

It is a Duffinian number.

Its product of digits (70543872) is a multiple of the sum of its prime divisors (1296).

It is not an unprimeable number, because it can be changed into a prime (6893666477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12376143 + ... + 12376699.

It is an arithmetic number, because the mean of its divisors is an integer number (437667300).

Almost surely, 26893666497 is an apocalyptic number.

It is an amenable number.

6893666497 is a deficient number, since it is larger than the sum of its proper divisors (109010303).

6893666497 is a wasteful number, since it uses less digits than its factorization.

6893666497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its digits is 70543872, while the sum is 64.

The square root of 6893666497 is about 83028.1066687661. The cubic root of 6893666497 is about 1903.1955916043.

The spelling of 6893666497 in words is "six billion, eight hundred ninety-three million, six hundred sixty-six thousand, four hundred ninety-seven".

Divisors: 1 139 269 331 557 37391 46009 77423 89039 149833 184367 12376421 20826787 25627013 49594723 6893666497