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7668913439 = 112924040481
BaseRepresentation
bin1110010010001101…
…00101010100011111
3201210110102011112002
413021012211110133
5111201220212224
63304551232515
7361020455135
oct71106452437
921713364462
107668913439
1132859a11a0
1215a037873b
13952a7c905
1452a721755
152ed3ea9ae
hex1c91a551f

7668913439 has 8 divisors (see below), whose sum is σ = 8654573520. Its totient is φ = 6731334400.

The previous prime is 7668913433. The next prime is 7668913481. The reversal of 7668913439 is 9343198667.

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

It is a cyclic number.

It is not a de Polignac number, because 7668913439 - 220 = 7667864863 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 (7668913433) 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, 12019922 + ... + 12020559.

It is an arithmetic number, because the mean of its divisors is an integer number (1081821690).

Almost surely, 27668913439 is an apocalyptic number.

7668913439 is a deficient number, since it is larger than the sum of its proper divisors (985660081).

7668913439 is a wasteful number, since it uses less digits than its factorization.

7668913439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24040521.

The product of its digits is 5878656, while the sum is 56.

The square root of 7668913439 is about 87572.3326113905. The cubic root of 7668913439 is about 1972.0198338498.

The spelling of 7668913439 in words is "seven billion, six hundred sixty-eight million, nine hundred thirteen thousand, four hundred thirty-nine".

Divisors: 1 11 29 319 24040481 264445291 697173949 7668913439