Search a number
-
+
51926081 = 174729723
BaseRepresentation
bin1100011000010…
…1010001000001
310121201010012012
43012011101001
5101243113311
65052542305
71200235664
oct306052101
9117633165
1051926081
1127346919
1215481995
13a9b0cbc
146c796db
15485a78b
hex3185441

51926081 has 4 divisors (see below), whose sum is σ = 51957552. Its totient is φ = 51894612.

The previous prime is 51926047. The next prime is 51926093. The reversal of 51926081 is 18062915.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51926081 - 210 = 51925057 is a prime.

It is a super-2 number, since 2×519260812 = 5392635776037122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51926011) 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, 13115 + ... + 16608.

It is an arithmetic number, because the mean of its divisors is an integer number (12989388).

Almost surely, 251926081 is an apocalyptic number.

It is an amenable number.

51926081 is a deficient number, since it is larger than the sum of its proper divisors (31471).

51926081 is a wasteful number, since it uses less digits than its factorization.

51926081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31470.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 51926081 is about 7205.9753677070. The cubic root of 51926081 is about 373.0741705987.

Adding to 51926081 its reverse (18062915), we get a palindrome (69988996).

The spelling of 51926081 in words is "fifty-one million, nine hundred twenty-six thousand, eighty-one".

Divisors: 1 1747 29723 51926081