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1418288645 = 52983191617
BaseRepresentation
bin101010010001001…
…0101111000000101
310122211202112021002
41110202111320011
510401040214040
6352422503045
750101153214
oct12442257005
93584675232
101418288645
11668650284
12336b94a85
13197ab2c67
14d651307b
15847a8a15
hex54895e05

1418288645 has 32 divisors (see below), whose sum is σ = 1794078720. Its totient is φ = 1074895360.

The previous prime is 1418288623. The next prime is 1418288647. The reversal of 1418288645 is 5468828141.

It is a happy number.

It is not a de Polignac number, because 1418288645 - 228 = 1149853189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1418288645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418288647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2298377 + ... + 2298993.

It is an arithmetic number, because the mean of its divisors is an integer number (56064960).

Almost surely, 21418288645 is an apocalyptic number.

It is an amenable number.

1418288645 is a deficient number, since it is larger than the sum of its proper divisors (375790075).

1418288645 is a wasteful number, since it uses less digits than its factorization.

1418288645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925.

The product of its digits is 491520, while the sum is 47.

The square root of 1418288645 is about 37660.1731939724. The cubic root of 1418288645 is about 1123.5391461532.

The spelling of 1418288645 in words is "one billion, four hundred eighteen million, two hundred eighty-eight thousand, six hundred forty-five".

Divisors: 1 5 29 83 145 191 415 617 955 2407 3085 5539 12035 15853 17893 27695 51211 79265 89465 117847 256055 459737 589235 1485119 2298685 3417563 7425595 9781301 17087815 48906505 283657729 1418288645