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28986084151 = 197147137483
BaseRepresentation
bin11010111111101101…
…001000101100110111
32202211002102122022021
4122333231020230313
5433330414143101
621152132214011
72044205435653
oct327755105467
982732378267
1028986084151
1111324986052
12574b46a307
13296c2c4bab
14158d917a63
15b49ae95a1
hex6bfb48b37

28986084151 has 4 divisors (see below), whose sum is σ = 29133221832. Its totient is φ = 28838946472.

The previous prime is 28986084139. The next prime is 28986084191. The reversal of 28986084151 is 15148068982.

It is a happy number.

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 28986084151 - 25 = 28986084119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28986084191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73568545 + ... + 73568938.

It is an arithmetic number, because the mean of its divisors is an integer number (7283305458).

Almost surely, 228986084151 is an apocalyptic number.

28986084151 is a deficient number, since it is larger than the sum of its proper divisors (147137681).

28986084151 is a wasteful number, since it uses less digits than its factorization.

28986084151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147137680.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 28986084151 in words is "twenty-eight billion, nine hundred eighty-six million, eighty-four thousand, one hundred fifty-one".

Divisors: 1 197 147137483 28986084151