Search a number
-
+
51311341 = 374332251
BaseRepresentation
bin1100001110111…
…1001011101101
310120112212221001
43003233023231
5101113430331
65031440301
71162065514
oct303571355
9116485831
1051311341
1126a66a74
1215226091
13a827253
146b5967b
154788561
hex30ef2ed

51311341 has 8 divisors (see below), whose sum is σ = 53925344. Its totient is φ = 48762000.

The previous prime is 51311339. The next prime is 51311363. The reversal of 51311341 is 14311315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51311341 - 21 = 51311339 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 (51311311) 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, 14535 + ... + 17716.

It is an arithmetic number, because the mean of its divisors is an integer number (6740668).

Almost surely, 251311341 is an apocalyptic number.

It is an amenable number.

51311341 is a deficient number, since it is larger than the sum of its proper divisors (2614003).

51311341 is a wasteful number, since it uses less digits than its factorization.

51311341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32331.

The product of its digits is 180, while the sum is 19.

The square root of 51311341 is about 7163.1934917326. The cubic root of 51311341 is about 371.5960780321.

Adding to 51311341 its reverse (14311315), we get a palindrome (65622656).

The spelling of 51311341 in words is "fifty-one million, three hundred eleven thousand, three hundred forty-one".

Divisors: 1 37 43 1591 32251 1193287 1386793 51311341