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6989375005 = 53893593509
BaseRepresentation
bin1101000001001100…
…10110011000011101
3200001002202001000221
412200212112120131
5103303240000010
63113314321341
7335126464414
oct64046263035
920032661027
106989375005
112a67357988
121430889251
13875055a72
144a439247b
152ad91adda
hex1a099661d

6989375005 has 8 divisors (see below), whose sum is σ = 8408813400. Its totient is φ = 5577124416.

The previous prime is 6989374991. The next prime is 6989375009. The reversal of 6989375005 is 5005739896.

It can be written as a sum of positive squares in 4 ways, for example, as 47485881 + 6941889124 = 6891^2 + 83318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6989375005 - 27 = 6989374877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989375009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1794810 + ... + 1798699.

It is an arithmetic number, because the mean of its divisors is an integer number (1051101675).

Almost surely, 26989375005 is an apocalyptic number.

It is an amenable number.

6989375005 is a deficient number, since it is larger than the sum of its proper divisors (1419438395).

6989375005 is a wasteful number, since it uses less digits than its factorization.

6989375005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593903.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The square root of 6989375005 is about 83602.4820504750. The cubic root of 6989375005 is about 1911.9628410414.

The spelling of 6989375005 in words is "six billion, nine hundred eighty-nine million, three hundred seventy-five thousand, five".

Divisors: 1 5 389 1945 3593509 17967545 1397875001 6989375005