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51093971 = 234574861
BaseRepresentation
bin1100001011101…
…0000111010011
310120010211202022
43002322013103
5101040001341
65023042055
71160202005
oct302720723
9116124668
1051093971
1126928725
121514032b
13a77c326
146b00375
154743e4b
hex30ba1d3

51093971 has 8 divisors (see below), whose sum is σ = 53443104. Its totient is φ = 48755520.

The previous prime is 51093953. The next prime is 51093989. The reversal of 51093971 is 17939015.

51093971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51093953) and next prime (51093989).

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 51093971 - 210 = 51092947 is a prime.

It is a super-2 number, since 2×510939712 = 5221187745097682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51093901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8081 + ... + 12941.

It is an arithmetic number, because the mean of its divisors is an integer number (6680388).

Almost surely, 251093971 is an apocalyptic number.

51093971 is a deficient number, since it is larger than the sum of its proper divisors (2349133).

51093971 is a wasteful number, since it uses less digits than its factorization.

51093971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 51093971 is about 7148.0046866241. The cubic root of 51093971 is about 371.0706050553.

The spelling of 51093971 in words is "fifty-one million, ninety-three thousand, nine hundred seventy-one".

Divisors: 1 23 457 4861 10511 111803 2221477 51093971