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28085026 = 252126953
BaseRepresentation
bin110101100100…
…0101100100010
31221211212102011
41223020230202
524142210101
62441543134
7460501354
oct153105442
957755364
1028085026
1114942772
1294a4aaa
135a84478
143a310d4
1526eb751
hex1ac8b22

28085026 has 8 divisors (see below), whose sum is σ = 42209964. Its totient is φ = 14015040.

The previous prime is 28085023. The next prime is 28085027. The reversal of 28085026 is 62058082.

It can be written as a sum of positive squares in 2 ways, for example, as 28079401 + 5625 = 5299^2 + 75^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28085023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12435 + ... + 14518.

Almost surely, 228085026 is an apocalyptic number.

28085026 is a deficient number, since it is larger than the sum of its proper divisors (14124938).

28085026 is a wasteful number, since it uses less digits than its factorization.

28085026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27476.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28085026 is about 5299.5307339424. The cubic root of 28085026 is about 303.9659544629.

The spelling of 28085026 in words is "twenty-eight million, eighty-five thousand, twenty-six".

Divisors: 1 2 521 1042 26953 53906 14042513 28085026