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6987070007 = 13751000511
BaseRepresentation
bin1101000000111011…
…00011101000110111
3200000221101221011122
412200131203220313
5103302142220012
63113153054155
7335101054331
oct64035435067
920027357148
106987070007
112a66023125
12142bb5735b
13874729868
144a3d52451
152ad612e72
hex1a0763a37

6987070007 has 4 divisors (see below), whose sum is σ = 7038070656. Its totient is φ = 6936069360.

The previous prime is 6987069983. The next prime is 6987070031. The reversal of 6987070007 is 7000707896.

6987070007 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6987069983) and next prime (6987070031).

It is a cyclic number.

It is not a de Polignac number, because 6987070007 - 220 = 6986021431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6987070007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987070087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25500119 + ... + 25500392.

It is an arithmetic number, because the mean of its divisors is an integer number (1759517664).

Almost surely, 26987070007 is an apocalyptic number.

6987070007 is a deficient number, since it is larger than the sum of its proper divisors (51000649).

6987070007 is a wasteful number, since it uses less digits than its factorization.

6987070007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000648.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 6987070007 is about 83588.6954498035. The cubic root of 6987070007 is about 1911.7526384089.

The spelling of 6987070007 in words is "six billion, nine hundred eighty-seven million, seventy thousand, seven".

Divisors: 1 137 51000511 6987070007