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8944421479 = 71277774497
BaseRepresentation
bin10000101010010000…
…10000101001100111
3212002100111200121121
420111020100221213
5121304232441404
64035313554411
7434436220360
oct102510205147
925070450547
108944421479
11387a990274
121897575a07
13ac70c09b6
1460bca8b67
1537539de54
hex215210a67

8944421479 has 4 divisors (see below), whose sum is σ = 10222195984. Its totient is φ = 7666646976.

The previous prime is 8944421467. The next prime is 8944421489. The reversal of 8944421479 is 9741244498.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8944421479 - 215 = 8944388711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8944421449) 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, 638887242 + ... + 638887255.

It is an arithmetic number, because the mean of its divisors is an integer number (2555548996).

Almost surely, 28944421479 is an apocalyptic number.

8944421479 is a deficient number, since it is larger than the sum of its proper divisors (1277774505).

8944421479 is a wasteful number, since it uses less digits than its factorization.

8944421479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277774504.

The product of its digits is 2322432, while the sum is 52.

The square root of 8944421479 is about 94574.9516468288. The cubic root of 8944421479 is about 2075.7932016780.

The spelling of 8944421479 in words is "eight billion, nine hundred forty-four million, four hundred twenty-one thousand, four hundred seventy-nine".

Divisors: 1 7 1277774497 8944421479