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6889280671 = 713591283159
BaseRepresentation
bin1100110101010001…
…00001010010011111
3122210010101201102101
412122220201102133
5103102123440141
63055341105531
7332502630250
oct63250412237
918703351371
106889280671
112a15901599
1214032582a7
1385a3ab350
14494d78b27
152a4c48531
hex19aa2149f

6889280671 has 16 divisors (see below), whose sum is σ = 8622835200. Its totient is φ = 5358467808.

The previous prime is 6889280659. The next prime is 6889280683. The reversal of 6889280671 is 1760829886.

It is an interprime number because it is at equal distance from previous prime (6889280659) and next prime (6889280683).

It is a cyclic number.

It is not a de Polignac number, because 6889280671 - 211 = 6889278623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6889280171) 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, 636211 + ... + 646948.

It is an arithmetic number, because the mean of its divisors is an integer number (538927200).

Almost surely, 26889280671 is an apocalyptic number.

6889280671 is a deficient number, since it is larger than the sum of its proper divisors (1733554529).

6889280671 is a wasteful number, since it uses less digits than its factorization.

6889280671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283238.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 6889280671 is about 83001.6907719355. The cubic root of 6889280671 is about 1902.7918946985.

The spelling of 6889280671 in words is "six billion, eight hundred eighty-nine million, two hundred eighty thousand, six hundred seventy-one".

Divisors: 1 7 13 59 91 413 767 5369 1283159 8982113 16681067 75706381 116767469 529944667 984182953 6889280671