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2681924917 = 71931650479
BaseRepresentation
bin1001111111011010…
…1110110100110101
320220220111220100111
42133312232310311
520443033044132
61122042543021
7123313662040
oct23766566465
96826456314
102681924917
111156970981
1262a207a71
13339828529
141b6289c57
1510a6b4647
hex9fdaed35

2681924917 has 16 divisors (see below), whose sum is σ = 3330457600. Its totient is φ = 2107548720.

The previous prime is 2681924911. The next prime is 2681924969. The reversal of 2681924917 is 7194291862.

It is a cyclic number.

It is not a de Polignac number, because 2681924917 - 27 = 2681924789 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 (2681924911) 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, 321117 + ... + 329362.

It is an arithmetic number, because the mean of its divisors is an integer number (208153600).

Almost surely, 22681924917 is an apocalyptic number.

It is an amenable number.

2681924917 is a deficient number, since it is larger than the sum of its proper divisors (648532683).

2681924917 is a wasteful number, since it uses less digits than its factorization.

2681924917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650536.

The product of its digits is 435456, while the sum is 49.

The square root of 2681924917 is about 51787.3045929212. The cubic root of 2681924917 is about 1389.3623901387.

The spelling of 2681924917 in words is "two billion, six hundred eighty-one million, nine hundred twenty-four thousand, nine hundred seventeen".

Divisors: 1 7 19 31 133 217 589 4123 650479 4553353 12359101 20164849 86513707 141153943 383132131 2681924917