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1218419483 = 10069121007
BaseRepresentation
bin100100010011111…
…1001101100011011
310010220200010022112
41020213321230123
54443403410413
6320522542535
742123252251
oct11047715433
93126603275
101218419483
11575847656
122a0067a4b
13165573398
14b7b665d1
1571e782a8
hex489f9b1b

1218419483 has 4 divisors (see below), whose sum is σ = 1218550560. Its totient is φ = 1218288408.

The previous prime is 1218419467. The next prime is 1218419497. The reversal of 1218419483 is 3849148121.

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

It is a cyclic number.

It is not a de Polignac number, because 1218419483 - 24 = 1218419467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1218419483.

It is not an unprimeable number, because it can be changed into a prime (1218419413) 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, 50435 + ... + 70572.

It is an arithmetic number, because the mean of its divisors is an integer number (304637640).

Almost surely, 21218419483 is an apocalyptic number.

1218419483 is a deficient number, since it is larger than the sum of its proper divisors (131077).

1218419483 is a wasteful number, since it uses less digits than its factorization.

1218419483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131076.

The product of its digits is 55296, while the sum is 41.

The square root of 1218419483 is about 34905.8660256410. The cubic root of 1218419483 is about 1068.0681019453.

The spelling of 1218419483 in words is "one billion, two hundred eighteen million, four hundred nineteen thousand, four hundred eighty-three".

Divisors: 1 10069 121007 1218419483