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1218216014 = 21216150087
BaseRepresentation
bin100100010011100…
…1000000001001110
310010220021210012122
41020213020001032
54443330403024
6320514332542
742121444121
oct11047100116
93126253178
101218216014
115757187a4
1229bb8a152
131655018a2
14b7b123b8
1571e37d5e
hex489c804e

1218216014 has 8 divisors (see below), whose sum is σ = 1827510768. Its totient is φ = 609045760.

The previous prime is 1218216001. The next prime is 1218216019. The reversal of 1218216014 is 4106128121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218216019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 49365.

It is an arithmetic number, because the mean of its divisors is an integer number (228438846).

Almost surely, 21218216014 is an apocalyptic number.

1218216014 is a deficient number, since it is larger than the sum of its proper divisors (609294754).

1218216014 is a wasteful number, since it uses less digits than its factorization.

1218216014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62250.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1218216014 is about 34902.9513651783. The cubic root of 1218216014 is about 1068.0086449056.

The spelling of 1218216014 in words is "one billion, two hundred eighteen million, two hundred sixteen thousand, fourteen".

Divisors: 1 2 12161 24322 50087 100174 609108007 1218216014