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28595961 = 323177329
BaseRepresentation
bin110110100010…
…1011011111001
31222210211021200
41231011123321
524310032321
62500524413
7465030102
oct155053371
958724250
1028595961
1115161629
1296b0709
135c02bb4
143b253a9
15279cd26
hex1b456f9

28595961 has 6 divisors (see below), whose sum is σ = 41305290. Its totient is φ = 19063968.

The previous prime is 28595953. The next prime is 28596011. The reversal of 28595961 is 16959582.

28595961 is a `hidden beast` number, since 2 + 8 + 59 + 596 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28419561 + 176400 = 5331^2 + 420^2 .

It is not a de Polignac number, because 28595961 - 23 = 28595953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28595951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588656 + ... + 1588673.

It is an arithmetic number, because the mean of its divisors is an integer number (6884215).

Almost surely, 228595961 is an apocalyptic number.

It is an amenable number.

28595961 is a deficient number, since it is larger than the sum of its proper divisors (12709329).

28595961 is a wasteful number, since it uses less digits than its factorization.

28595961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177335 (or 3177332 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 28595961 is about 5347.5191444258. The cubic root of 28595961 is about 305.7981816733.

The spelling of 28595961 in words is "twenty-eight million, five hundred ninety-five thousand, nine hundred sixty-one".

Divisors: 1 3 9 3177329 9531987 28595961