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28560151 = 263310847
BaseRepresentation
bin110110011110…
…0101100010111
31222202000011101
41230330230113
524302411101
62500050531
7464520514
oct154745427
958660141
1028560151
1115137734
129693a47
135bbc7c9
143b1630b
152792401
hex1b3cb17

28560151 has 4 divisors (see below), whose sum is σ = 28573632. Its totient is φ = 28546672.

The previous prime is 28560143. The next prime is 28560179. The reversal of 28560151 is 15106582.

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

It is a cyclic number.

It is not a de Polignac number, because 28560151 - 23 = 28560143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28560251) 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, 2791 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (7143408).

Almost surely, 228560151 is an apocalyptic number.

28560151 is a deficient number, since it is larger than the sum of its proper divisors (13481).

28560151 is a wasteful number, since it uses less digits than its factorization.

28560151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 28560151 is about 5344.1698139187. The cubic root of 28560151 is about 305.6704805721.

The spelling of 28560151 in words is "twenty-eight million, five hundred sixty thousand, one hundred fifty-one".

Divisors: 1 2633 10847 28560151