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51080299 = 469110889
BaseRepresentation
bin1100001011011…
…0110001101011
310120010010222221
43002312301223
5101034032144
65022454511
71160114104
oct302666153
9116103887
1051080299
1126919426
1215134437
13a77603a
146ad93ab
15473ed84
hex30b6c6b

51080299 has 4 divisors (see below), whose sum is σ = 51095880. Its totient is φ = 51064720.

The previous prime is 51080279. The next prime is 51080317. The reversal of 51080299 is 99208015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99208015 = 519841603.

It is a cyclic number.

It is not a de Polignac number, because 51080299 - 221 = 48983147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51080209) 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, 754 + ... + 10135.

It is an arithmetic number, because the mean of its divisors is an integer number (12773970).

Almost surely, 251080299 is an apocalyptic number.

51080299 is a deficient number, since it is larger than the sum of its proper divisors (15581).

51080299 is a wasteful number, since it uses less digits than its factorization.

51080299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15580.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 51080299 is about 7147.0482718392. The cubic root of 51080299 is about 371.0375044123.

The spelling of 51080299 in words is "fifty-one million, eighty thousand, two hundred ninety-nine".

Divisors: 1 4691 10889 51080299