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28603488673 = 314321457981
BaseRepresentation
bin11010101000111001…
…101001100110100001
32201211102111202222101
4122220321221212201
5432034443114143
621050144010401
72031551433154
oct325071514641
981742452871
1028603488673
1111148a18441
125663300a01
13290ac68536
141554ba3c9b
15b26222b4d
hex6a8e699a1

28603488673 has 8 divisors (see below), whose sum is σ = 30212838656. Its totient is φ = 27037054800.

The previous prime is 28603488671. The next prime is 28603488679. The reversal of 28603488673 is 37688430682.

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

It is a cyclic number.

It is not a de Polignac number, because 28603488673 - 21 = 28603488671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28603488671) 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, 10727658 + ... + 10730323.

It is an arithmetic number, because the mean of its divisors is an integer number (3776604832).

Almost surely, 228603488673 is an apocalyptic number.

It is an amenable number.

28603488673 is a deficient number, since it is larger than the sum of its proper divisors (1609349983).

28603488673 is a wasteful number, since it uses less digits than its factorization.

28603488673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21458055.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 28603488673 in words is "twenty-eight billion, six hundred three million, four hundred eighty-eight thousand, six hundred seventy-three".

Divisors: 1 31 43 1333 21457981 665197411 922693183 28603488673