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28470309033 = 386231100557
BaseRepresentation
bin11010100000111101…
…100111000010101001
32201111010220112212010
4122200331213002221
5431301344342113
621025025310133
72025343430265
oct324075470251
981433815763
1028470309033
111108a824621
125626795349
1328b94a870a
1415412170a5
15b196b71c3
hex6a0f670a9

28470309033 has 8 divisors (see below), whose sum is σ = 37964848768. Its totient is φ = 18977987664.

The previous prime is 28470309019. The next prime is 28470309047. The reversal of 28470309033 is 33090307482.

It is an interprime number because it is at equal distance from previous prime (28470309019) and next prime (28470309047).

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

It is not a de Polignac number, because 28470309033 - 24 = 28470309017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28470308982 and 28470309000.

It is not an unprimeable number, because it can be changed into a prime (28470309533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524410 + ... + 576147.

It is an arithmetic number, because the mean of its divisors is an integer number (4745606096).

Almost surely, 228470309033 is an apocalyptic number.

It is an amenable number.

28470309033 is a deficient number, since it is larger than the sum of its proper divisors (9494539735).

28470309033 is a wasteful number, since it uses less digits than its factorization.

28470309033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109183.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 28470309033 in words is "twenty-eight billion, four hundred seventy million, three hundred nine thousand, thirty-three".

Divisors: 1 3 8623 25869 1100557 3301671 9490103011 28470309033