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28607098 = 2131100273
BaseRepresentation
bin110110100100…
…0001001111010
31222211101120011
41231020021322
524310411343
62501052134
7465104422
oct155101172
958741504
1028607098
1115169a33
1296b704a
135c07ca0
143b29482
1527a129d
hex1b4827a

28607098 has 8 divisors (see below), whose sum is σ = 46211508. Its totient is φ = 13203264.

The previous prime is 28607093. The next prime is 28607099. The reversal of 28607098 is 89070682.

It can be written as a sum of positive squares in 2 ways, for example, as 24433249 + 4173849 = 4943^2 + 2043^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28607098.

It is not an unprimeable number, because it can be changed into a prime (28607093) 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, 550111 + ... + 550162.

Almost surely, 228607098 is an apocalyptic number.

28607098 is a deficient number, since it is larger than the sum of its proper divisors (17604410).

28607098 is a wasteful number, since it uses less digits than its factorization.

28607098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100288.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 28607098 is about 5348.5603670521. The cubic root of 28607098 is about 305.8378753014.

The spelling of 28607098 in words is "twenty-eight million, six hundred seven thousand, ninety-eight".

Divisors: 1 2 13 26 1100273 2200546 14303549 28607098