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468218681 = 7233928597
BaseRepresentation
bin11011111010000…
…111001100111001
31012122000222021122
4123322013030321
51424330444211
6114243315025
714413536020
oct3372071471
91178028248
10468218681
1122032a697
1211097ba75
1376008398
14462818b7
152b18b6db
hex1be87339

468218681 has 8 divisors (see below), whose sum is σ = 535354560. Its totient is φ = 401144688.

The previous prime is 468218677. The next prime is 468218693. The reversal of 468218681 is 186812864.

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

It is not a de Polignac number, because 468218681 - 22 = 468218677 is a prime.

It is a super-2 number, since 2×4682186812 = 438457466474759522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (468218651) 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, 2075 + ... + 30671.

It is an arithmetic number, because the mean of its divisors is an integer number (66919320).

Almost surely, 2468218681 is an apocalyptic number.

It is an amenable number.

468218681 is a deficient number, since it is larger than the sum of its proper divisors (67135879).

468218681 is a wasteful number, since it uses less digits than its factorization.

468218681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30943.

The product of its digits is 147456, while the sum is 44.

The square root of 468218681 is about 21638.3613288992. The cubic root of 468218681 is about 776.5145165636.

The spelling of 468218681 in words is "four hundred sixty-eight million, two hundred eighteen thousand, six hundred eighty-one".

Divisors: 1 7 2339 16373 28597 200179 66888383 468218681