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6985960677 = 32776217853
BaseRepresentation
bin1101000000110010…
…10100110011100101
3200000212022120110100
412200121110303211
5103301401220202
63113113214313
7335055454203
oct64031246345
920025276410
106985960677
112a65435723
12142b701399
1387442b957
144a3b44073
152ad49441c
hex1a0654ce5

6985960677 has 6 divisors (see below), whose sum is σ = 10090832102. Its totient is φ = 4657307112.

The previous prime is 6985960649. The next prime is 6985960697. The reversal of 6985960677 is 7760695896.

It can be written as a sum of positive squares in only one way, i.e., 5625900036 + 1360060641 = 75006^2 + 36879^2 .

It is not a de Polignac number, because 6985960677 - 212 = 6985956581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985960697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388108918 + ... + 388108935.

Almost surely, 26985960677 is an apocalyptic number.

It is an amenable number.

6985960677 is a deficient number, since it is larger than the sum of its proper divisors (3104871425).

6985960677 is a wasteful number, since it uses less digits than its factorization.

6985960677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776217859 (or 776217856 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The square root of 6985960677 is about 83582.0595403104. The cubic root of 6985960677 is about 1911.6514573797.

The spelling of 6985960677 in words is "six billion, nine hundred eighty-five million, nine hundred sixty thousand, six hundred seventy-seven".

Divisors: 1 3 9 776217853 2328653559 6985960677