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7989106 = 23994553
BaseRepresentation
bin11110011110011101110010
3120000212222211
4132132131302
54021122411
6443122334
7124622566
oct36363562
916025884
107989106
114567374
1228133aa
1318694a8
1410bd6a6
15a7c221
hex79e772

7989106 has 4 divisors (see below), whose sum is σ = 11983662. Its totient is φ = 3994552.

The previous prime is 7989083. The next prime is 7989143. The reversal of 7989106 is 6019897.

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

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 2030625 = 2441^2 + 1425^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997275 + ... + 1997278.

Almost surely, 27989106 is an apocalyptic number.

7989106 is a deficient number, since it is larger than the sum of its proper divisors (3994556).

7989106 is a wasteful number, since it uses less digits than its factorization.

7989106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994555.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 7989106 is about 2826.5006633645. The cubic root of 7989106 is about 199.9091754274.

The spelling of 7989106 in words is "seven million, nine hundred eighty-nine thousand, one hundred six".

Divisors: 1 2 3994553 7989106