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28842895 = 543134153
BaseRepresentation
bin110111000000…
…1101110001111
32000021101000101
41232001232033
524340433040
62510111531
7500106034
oct156015617
960241011
1028842895
1115310104
1297ab5a7
135c8b403
143b8b38b
1527eb09a
hex1b81b8f

28842895 has 8 divisors (see below), whose sum is σ = 35416656. Its totient is φ = 22537536.

The previous prime is 28842889. The next prime is 28842929. The reversal of 28842895 is 59824882.

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 28842895 - 23 = 28842887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66862 + ... + 67291.

It is an arithmetic number, because the mean of its divisors is an integer number (4427082).

Almost surely, 228842895 is an apocalyptic number.

28842895 is a deficient number, since it is larger than the sum of its proper divisors (6573761).

28842895 is a wasteful number, since it uses less digits than its factorization.

28842895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134201.

The product of its digits is 368640, while the sum is 46.

The square root of 28842895 is about 5370.5581646604. The cubic root of 28842895 is about 306.6758772963.

The spelling of 28842895 in words is "twenty-eight million, eight hundred forty-two thousand, eight hundred ninety-five".

Divisors: 1 5 43 215 134153 670765 5768579 28842895