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28341488487 = 3133791917427
BaseRepresentation
bin11010011001010010…
…001100101101100111
32201011011111210021210
4122121102030231213
5431020410112422
621004144242503
72022220451214
oct323122145547
981134453253
1028341488487
1111024038864
1255ab610433
1328988b3a40
14152c082b0b
15b0d21d10c
hex69948cb67

28341488487 has 16 divisors (see below), whose sum is σ = 40802867840. Its totient is φ = 17394888672.

The previous prime is 28341488437. The next prime is 28341488489. The reversal of 28341488487 is 78488414382.

It is a happy number.

It is not a de Polignac number, because 28341488487 - 27 = 28341488359 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341488489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943933 + ... + 973494.

It is an arithmetic number, because the mean of its divisors is an integer number (2550179240).

Almost surely, 228341488487 is an apocalyptic number.

28341488487 is a deficient number, since it is larger than the sum of its proper divisors (12461379353).

28341488487 is a wasteful number, since it uses less digits than its factorization.

28341488487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917822.

The product of its digits is 11010048, while the sum is 57.

The spelling of 28341488487 in words is "twenty-eight billion, three hundred forty-one million, four hundred eighty-eight thousand, four hundred eighty-seven".

Divisors: 1 3 13 39 379 1137 4927 14781 1917427 5752281 24926551 74779653 726704833 2180114499 9447162829 28341488487