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28595147 = 710214001
BaseRepresentation
bin110110100010…
…1001111001011
31222210210011112
41231011033023
524310021042
62500520535
7465024530
oct155051713
958723145
1028595147
1115160a59
1296b014b
135c02709
143b24d87
15279c982
hex1b453cb

28595147 has 8 divisors (see below), whose sum is σ = 32720352. Its totient is φ = 24480000.

The previous prime is 28595137. The next prime is 28595159. The reversal of 28595147 is 74159582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28595147 - 212 = 28591051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28595137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5147 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (4090044).

Almost surely, 228595147 is an apocalyptic number.

28595147 is a deficient number, since it is larger than the sum of its proper divisors (4125205).

28595147 is a wasteful number, since it uses less digits than its factorization.

28595147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029.

The product of its digits is 100800, while the sum is 41.

The square root of 28595147 is about 5347.4430338247. The cubic root of 28595147 is about 305.7952800738.

The spelling of 28595147 in words is "twenty-eight million, five hundred ninety-five thousand, one hundred forty-seven".

Divisors: 1 7 1021 4001 7147 28007 4085021 28595147