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7946342369 = 71135191767
BaseRepresentation
bin1110110011010001…
…11000111111100001
3202111210110000110122
413121220320333201
5112233230423434
63352301410025
7400626536630
oct73150707741
922453400418
107946342369
1134085596a9
121659269915
139983a6c44
145554db517
1531794bc2e
hex1d9a38fe1

7946342369 has 4 divisors (see below), whose sum is σ = 9081534144. Its totient is φ = 6811150596.

The previous prime is 7946342359. The next prime is 7946342377. The reversal of 7946342369 is 9632436497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9632436497 = 10790022771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7946342369 is a prime.

It is a super-2 number, since 2×79463423692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7946342369.

It is not an unprimeable number, because it can be changed into a prime (7946342309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567595877 + ... + 567595890.

It is an arithmetic number, because the mean of its divisors is an integer number (2270383536).

Almost surely, 27946342369 is an apocalyptic number.

It is an amenable number.

7946342369 is a deficient number, since it is larger than the sum of its proper divisors (1135191775).

7946342369 is a wasteful number, since it uses less digits than its factorization.

7946342369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135191774.

The product of its digits is 5878656, while the sum is 53.

The square root of 7946342369 is about 89142.2591647755. The cubic root of 7946342369 is about 1995.5184963128.

The spelling of 7946342369 in words is "seven billion, nine hundred forty-six million, three hundred forty-two thousand, three hundred sixty-nine".

Divisors: 1 7 1135191767 7946342369