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28996 = 2211659
BaseRepresentation
bin111000101000100
31110202221
413011010
51411441
6342124
7150352
oct70504
943687
1028996
111a870
1214944
1310276
14a7d2
1588d1
hex7144

28996 has 12 divisors (see below), whose sum is σ = 55440. Its totient is φ = 13160.

The previous prime is 28979. The next prime is 29009. The reversal of 28996 is 69982.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286 + ... + 373.

It is an arithmetic number, because the mean of its divisors is an integer number (4620).

228996 is an apocalyptic number.

It is an amenable number.

28996 is a deficient number, since it is larger than the sum of its proper divisors (26444).

28996 is a wasteful number, since it uses less digits than its factorization.

28996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 28996 is about 170.2821188499. The cubic root of 28996 is about 30.7217556324.

It can be divided in two parts, 28 and 996, that added together give a 10-th power (1024 = 210).

The spelling of 28996 in words is "twenty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 11 22 44 659 1318 2636 7249 14498 28996