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7996 = 221999
BaseRepresentation
bin1111100111100
3101222011
41330330
5223441
6101004
732212
oct17474
911864
107996
11600a
124764
133841
142cb2
152581
hex1f3c

7996 has 6 divisors (see below), whose sum is σ = 14000. Its totient is φ = 3996.

The previous prime is 7993. The next prime is 8009. The reversal of 7996 is 6997.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996 + ... + 1003.

27996 is an apocalyptic number.

It is an amenable number.

7996 is a deficient number, since it is larger than the sum of its proper divisors (6004).

7996 is a wasteful number, since it uses less digits than its factorization.

7996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003 (or 2001 counting only the distinct ones).

The product of its digits is 3402, while the sum is 31.

The square root of 7996 is about 89.4203556244. The cubic root of 7996 is about 19.9966661110.

Subtracting from 7996 its reverse (6997), we obtain a palindrome (999).

The spelling of 7996 in words is "seven thousand, nine hundred ninety-six".

Divisors: 1 2 4 1999 3998 7996