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28824419989 = 174951342467
BaseRepresentation
bin11010110110000100…
…011011111010010101
32202101211020020202201
4122312010123322111
5433013022414424
621124115204501
72040203345611
oct326604337225
982354206681
1028824419989
11112516a7402
1257052a6731
132944970b21
141576274341
15b3a813d44
hex6b611be95

28824419989 has 8 divisors (see below), whose sum is σ = 30526227648. Its totient is φ = 27123307200.

The previous prime is 28824419971. The next prime is 28824420011. The reversal of 28824419989 is 98991442882.

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 28824419989 - 229 = 28287549077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28824419989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824419089) 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 7 ways as a sum of consecutive naturals, for example, 87067 + ... + 255400.

It is an arithmetic number, because the mean of its divisors is an integer number (3815778456).

Almost surely, 228824419989 is an apocalyptic number.

It is an amenable number.

28824419989 is a deficient number, since it is larger than the sum of its proper divisors (1701807659).

28824419989 is a wasteful number, since it uses less digits than its factorization.

28824419989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347435.

The product of its digits is 23887872, while the sum is 64.

The spelling of 28824419989 in words is "twenty-eight billion, eight hundred twenty-four million, four hundred nineteen thousand, nine hundred eighty-nine".

Divisors: 1 17 4951 84167 342467 5821939 1695554117 28824419989