Search a number
-
+
51325412213 = 971215324551
BaseRepresentation
bin101111110011001110…
…111010001101110101
311220110221211002101002
4233303032322031311
51320103301142323
635324545413045
73464614543205
oct576316721565
9156427732332
1051325412213
111a848947949
129b4493a185
134abc5346ca
1426ac788405
151505e04828
hexbf33ba375

51325412213 has 8 divisors (see below), whose sum is σ = 51404227776. Its totient is φ = 51246652000.

The previous prime is 51325412183. The next prime is 51325412227. The reversal of 51325412213 is 31221452315.

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 51325412213 - 212 = 51325408117 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 (51325418213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078288 + ... + 2102838.

It is an arithmetic number, because the mean of its divisors is an integer number (6425528472).

Almost surely, 251325412213 is an apocalyptic number.

It is an amenable number.

51325412213 is a deficient number, since it is larger than the sum of its proper divisors (78815563).

51325412213 is a wasteful number, since it uses less digits than its factorization.

51325412213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27675.

The product of its digits is 7200, while the sum is 29.

Adding to 51325412213 its reverse (31221452315), we get a palindrome (82546864528).

The spelling of 51325412213 in words is "fifty-one billion, three hundred twenty-five million, four hundred twelve thousand, two hundred thirteen".

Divisors: 1 971 2153 24551 2090563 23839021 52858303 51325412213