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2051660107 = 72631114427
BaseRepresentation
bin111101001001001…
…1101100101001011
312021222120010120101
41322102131211023
513200211110412
6535330110231
7101561552230
oct17222354513
95258503511
102051660107
11963121672
1249311b377
13269094283
141566a5787
15c01b9457
hex7a49d94b

2051660107 has 8 divisors (see below), whose sum is σ = 2353671936. Its totient is φ = 1751877672.

The previous prime is 2051660069. The next prime is 2051660137. The reversal of 2051660107 is 7010661502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2051660107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051660137) 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 7 ways as a sum of consecutive naturals, for example, 555373 + ... + 559054.

It is an arithmetic number, because the mean of its divisors is an integer number (294208992).

Almost surely, 22051660107 is an apocalyptic number.

2051660107 is a deficient number, since it is larger than the sum of its proper divisors (302011829).

2051660107 is a wasteful number, since it uses less digits than its factorization.

2051660107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114697.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2051660107 is about 45295.2547956185. The cubic root of 2051660107 is about 1270.6769092782.

The spelling of 2051660107 in words is "two billion, fifty-one million, six hundred sixty thousand, one hundred seven".

Divisors: 1 7 263 1841 1114427 7800989 293094301 2051660107