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7668263461 = 38273200357
BaseRepresentation
bin1110010010001000…
…00110101000100101
3201210102012010220211
413021010012220211
5111201033412321
63304525255421
7361012110145
oct71104065045
921712163824
107668263461
113285597921
1215a0104571
139528b2b01
1452a5d2925
152ed31d0e1
hex1c9106a25

7668263461 has 4 divisors (see below), whose sum is σ = 7668502092. Its totient is φ = 7668024832.

The previous prime is 7668263441. The next prime is 7668263479. The reversal of 7668263461 is 1643628667.

7668263461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1643628667 = 5927858113.

It can be written as a sum of positive squares in 2 ways, for example, as 2654207361 + 5014056100 = 51519^2 + 70810^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668263461 - 211 = 7668261413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668263441) 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 3 ways as a sum of consecutive naturals, for example, 61906 + ... + 138451.

It is an arithmetic number, because the mean of its divisors is an integer number (1917125523).

Almost surely, 27668263461 is an apocalyptic number.

It is an amenable number.

7668263461 is a deficient number, since it is larger than the sum of its proper divisors (238631).

7668263461 is a wasteful number, since it uses less digits than its factorization.

7668263461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238630.

The product of its digits is 1741824, while the sum is 49.

The square root of 7668263461 is about 87568.6214405594. The cubic root of 7668263461 is about 1971.9641194937.

The spelling of 7668263461 in words is "seven billion, six hundred sixty-eight million, two hundred sixty-three thousand, four hundred sixty-one".

Divisors: 1 38273 200357 7668263461