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7944484 = 221986121
BaseRepresentation
bin11110010011100100100100
3112221121210011
4132103210210
54013210414
6442140004
7124345522
oct36234444
915847704
107944484
114536899
1227b1604
1318520a2
1410ab312
15a6ddc4
hex793924

7944484 has 6 divisors (see below), whose sum is σ = 13902854. Its totient is φ = 3972240.

The previous prime is 7944481. The next prime is 7944487. The reversal of 7944484 is 4844497.

It is an interprime number because it is at equal distance from previous prime (7944481) and next prime (7944487).

It can be written as a sum of positive squares in only one way, i.e., 5760000 + 2184484 = 2400^2 + 1478^2 .

It is a super-2 number, since 2×79444842 = 126229652052512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7944481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993057 + ... + 993064.

Almost surely, 27944484 is an apocalyptic number.

It is an amenable number.

7944484 is a deficient number, since it is larger than the sum of its proper divisors (5958370).

7944484 is a wasteful number, since it uses less digits than its factorization.

7944484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986125 (or 1986123 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 7944484 is about 2818.5961044463. The cubic root of 7944484 is about 199.5362923738.

The spelling of 7944484 in words is "seven million, nine hundred forty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 1986121 3972242 7944484