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28606465 = 514513943
BaseRepresentation
bin110110100100…
…0000000000001
31222211100200201
41231020000001
524310401330
62501045201
7465102526
oct155100001
958740621
1028606465
1115169508
1296b6801
135c07904
143b2914d
1527a0eca
hex1b48001

28606465 has 8 divisors (see below), whose sum is σ = 34360128. Its totient is φ = 22863600.

The previous prime is 28606463. The next prime is 28606471. The reversal of 28606465 is 56460682.

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

It is not a de Polignac number, because 28606465 - 21 = 28606463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28606463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5284 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (4295016).

It is a Proth number, since it is equal to 873 ⋅ 215 + 1 and 873 < 215.

Almost surely, 228606465 is an apocalyptic number.

It is an amenable number.

28606465 is a deficient number, since it is larger than the sum of its proper divisors (5753663).

28606465 is a wasteful number, since it uses less digits than its factorization.

28606465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 28606465 is about 5348.5011919228. The cubic root of 28606465 is about 305.8356194883.

The spelling of 28606465 in words is "twenty-eight million, six hundred six thousand, four hundred sixty-five".

Divisors: 1 5 1451 3943 7255 19715 5721293 28606465