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1418681017 = 13109129309
BaseRepresentation
bin101010010001111…
…0101101010111001
310122212111110111101
41110203311222321
510401140243032
6352435131401
750104406155
oct12443655271
93585443441
101418681017
11668899056
12337143b61
13197bbc730
14d65b6065
1584834de7
hex548f5ab9

1418681017 has 4 divisors (see below), whose sum is σ = 1527810340. Its totient is φ = 1309551696.

The previous prime is 1418680997. The next prime is 1418681021. The reversal of 1418681017 is 7101868141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 890186896 + 528494121 = 29836^2 + 22989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1418681017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1418681617) 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 3 ways as a sum of consecutive naturals, for example, 54564642 + ... + 54564667.

It is an arithmetic number, because the mean of its divisors is an integer number (381952585).

Almost surely, 21418681017 is an apocalyptic number.

It is an amenable number.

1418681017 is a deficient number, since it is larger than the sum of its proper divisors (109129323).

1418681017 is a wasteful number, since it uses less digits than its factorization.

1418681017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109129322.

The product of its (nonzero) digits is 10752, while the sum is 37.

The square root of 1418681017 is about 37665.3822096630. The cubic root of 1418681017 is about 1123.6427462810.

The spelling of 1418681017 in words is "one billion, four hundred eighteen million, six hundred eighty-one thousand, seventeen".

Divisors: 1 13 109129309 1418681017