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7218830049 = 32639149341
BaseRepresentation
bin1101011100100011…
…01001101011100001
3200122002111120011220
412232101221223201
5104241010030144
63152152325253
7343614020514
oct65621515341
920562446156
107218830049
113074928952
1214956a3829
138b0753c92
144c6a40d7b
152c3b42919
hex1ae469ae1

7218830049 has 8 divisors (see below), whose sum is σ = 9661705152. Its totient is φ = 4794254160.

The previous prime is 7218830041. The next prime is 7218830051. The reversal of 7218830049 is 9400388127.

7218830049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7218830049 - 23 = 7218830041 is a prime.

It is a super-2 number, since 2×72188300492 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7218830041) 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, 4573882 + ... + 4575459.

It is an arithmetic number, because the mean of its divisors is an integer number (1207713144).

Almost surely, 27218830049 is an apocalyptic number.

It is an amenable number.

7218830049 is a deficient number, since it is larger than the sum of its proper divisors (2442875103).

7218830049 is a wasteful number, since it uses less digits than its factorization.

7218830049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149607.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 7218830049 is about 84963.6984187953. The cubic root of 7218830049 is about 1932.6606568593.

The spelling of 7218830049 in words is "seven billion, two hundred eighteen million, eight hundred thirty thousand, forty-nine".

Divisors: 1 3 263 789 9149341 27448023 2406276683 7218830049