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28430088083 = 37768380759
BaseRepresentation
bin11010011110100100…
…001011011110010011
32201101100020010002022
4122132210023132103
5431211100304313
621021031242055
72024344522115
oct323644133623
981340203068
1028430088083
111106a052a71
12561521932b
1328b1065437
141539b473b5
15b15dbec08
hex69e90b793

28430088083 has 4 divisors (see below), whose sum is σ = 29198468880. Its totient is φ = 27661707288.

The previous prime is 28430088073. The next prime is 28430088097. The reversal of 28430088083 is 38088003482.

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 28430088083 - 26 = 28430088019 is a prime.

It is a super-2 number, since 2×284300880832 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28430088073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384190343 + ... + 384190416.

It is an arithmetic number, because the mean of its divisors is an integer number (7299617220).

Almost surely, 228430088083 is an apocalyptic number.

28430088083 is a deficient number, since it is larger than the sum of its proper divisors (768380797).

28430088083 is an equidigital number, since it uses as much as digits as its factorization.

28430088083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768380796.

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 28430088083 in words is "twenty-eight billion, four hundred thirty million, eighty-eight thousand, eighty-three".

Divisors: 1 37 768380759 28430088083