Search a number
-
+
51774741 = 3317112799
BaseRepresentation
bin1100010110000…
…0010100010101
310121102102121000
43011200110111
5101223242431
65045413513
71166035524
oct305402425
9117372530
1051774741
1127253147
121540a299
13a95a155
146c3a4bb
15482a9e6
hex3160515

51774741 has 16 divisors (see below), whose sum is σ = 81216000. Its totient is φ = 32485824.

The previous prime is 51774731. The next prime is 51774757. The reversal of 51774741 is 14747715.

51774741 is a `hidden beast` number, since 517 + 74 + 74 + 1 = 666.

It is not a de Polignac number, because 51774741 - 213 = 51766549 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51774696 and 51774705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51774731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55941 + ... + 56858.

It is an arithmetic number, because the mean of its divisors is an integer number (5076000).

Almost surely, 251774741 is an apocalyptic number.

51774741 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51774741 is a deficient number, since it is larger than the sum of its proper divisors (29441259).

51774741 is a wasteful number, since it uses less digits than its factorization.

51774741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112825 (or 112819 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 51774741 is about 7195.4666978591. The cubic root of 51774741 is about 372.7113729107.

The spelling of 51774741 in words is "fifty-one million, seven hundred seventy-four thousand, seven hundred forty-one".

Divisors: 1 3 9 17 27 51 153 459 112799 338397 1015191 1917583 3045573 5752749 17258247 51774741