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28946041 = 41706001
BaseRepresentation
bin110111001101…
…0111001111001
32000110121111121
41232122321321
524402233131
62512225241
7501015535
oct156327171
960417447
1028946041
1115380653
12983b221
135cc6347
143bb6bc5
15281b911
hex1b9ae79

28946041 has 4 divisors (see below), whose sum is σ = 29652084. Its totient is φ = 28240000.

The previous prime is 28946039. The next prime is 28946051. The reversal of 28946041 is 14064982.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8732025 + 20214016 = 2955^2 + 4496^2 .

It is a cyclic number.

It is not a de Polignac number, because 28946041 - 21 = 28946039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28945988 and 28946006.

It is not an unprimeable number, because it can be changed into a prime (28946011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352960 + ... + 353041.

It is an arithmetic number, because the mean of its divisors is an integer number (7413021).

Almost surely, 228946041 is an apocalyptic number.

It is an amenable number.

28946041 is a deficient number, since it is larger than the sum of its proper divisors (706043).

28946041 is an equidigital number, since it uses as much as digits as its factorization.

28946041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706042.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28946041 is about 5380.1525071321. The cubic root of 28946041 is about 307.0410135234.

The spelling of 28946041 in words is "twenty-eight million, nine hundred forty-six thousand, forty-one".

Divisors: 1 41 706001 28946041