Search a number
-
+
51340853 = 2310920479
BaseRepresentation
bin1100001111011…
…0011000110101
310120121101102002
43003312120311
5101120401403
65032225045
71162250534
oct303663065
9116541362
1051340853
1126a87163
121523b185
13a837805
146b6631b
154792188
hex30f6635

51340853 has 8 divisors (see below), whose sum is σ = 54067200. Its totient is φ = 48655728.

The previous prime is 51340843. The next prime is 51340859. The reversal of 51340853 is 35804315.

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 51340853 - 24 = 51340837 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 (51340859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7733 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (6758400).

Almost surely, 251340853 is an apocalyptic number.

It is an amenable number.

51340853 is a deficient number, since it is larger than the sum of its proper divisors (2726347).

51340853 is a wasteful number, since it uses less digits than its factorization.

51340853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20611.

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

The square root of 51340853 is about 7165.2531706842. The cubic root of 51340853 is about 371.6673062208.

The spelling of 51340853 in words is "fifty-one million, three hundred forty thousand, eight hundred fifty-three".

Divisors: 1 23 109 2507 20479 471017 2232211 51340853