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2680238517 = 3113112592081
BaseRepresentation
bin1001111111000001…
…0011000110110101
320220210100020001020
42133300103012311
520442120113032
61121542451353
7123263436315
oct23760230665
96823306036
102680238517
111155a19960
12629733b59
13339387a68
141b5d6b445
1510a47eb2c
hex9fc131b5

2680238517 has 32 divisors (see below), whose sum is σ = 4029419520. Its totient is φ = 1569984000.

The previous prime is 2680238501. The next prime is 2680238521. The reversal of 2680238517 is 7158320862.

It is not a de Polignac number, because 2680238517 - 24 = 2680238501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680238527) 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 31 ways as a sum of consecutive naturals, for example, 1286917 + ... + 1288997.

It is an arithmetic number, because the mean of its divisors is an integer number (125919360).

Almost surely, 22680238517 is an apocalyptic number.

It is an amenable number.

2680238517 is a deficient number, since it is larger than the sum of its proper divisors (1349181003).

2680238517 is a wasteful number, since it uses less digits than its factorization.

2680238517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2680238517 is about 51771.0200498310. The cubic root of 2680238517 is about 1389.0711177532.

The spelling of 2680238517 in words is "two billion, six hundred eighty million, two hundred thirty-eight thousand, five hundred seventeen".

Divisors: 1 3 11 31 33 93 341 1023 1259 2081 3777 6243 13849 22891 39029 41547 64511 68673 117087 193533 429319 709621 1287957 2128863 2619979 7859937 28819769 81219349 86459307 243658047 893412839 2680238517