Search a number
-
+
51731341 is a prime number
BaseRepresentation
bin1100010101010…
…1101110001101
310121100020001121
43011111232031
5101220400331
65044440541
71165465144
oct305255615
9117306047
1051731341
1127223582
12153a9151
13a94347c
146c2875b
15481cc11
hex3155b8d

51731341 has 2 divisors, whose sum is σ = 51731342. Its totient is φ = 51731340.

The previous prime is 51731297. The next prime is 51731353. The reversal of 51731341 is 14313715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35450116 + 16281225 = 5954^2 + 4035^2 .

It is a cyclic number.

It is not a de Polignac number, because 51731341 - 219 = 51207053 is a prime.

It is a super-2 number, since 2×517313412 = 5352263283316562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51731941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25865670 + 25865671.

It is an arithmetic number, because the mean of its divisors is an integer number (25865671).

Almost surely, 251731341 is an apocalyptic number.

It is an amenable number.

51731341 is a deficient number, since it is larger than the sum of its proper divisors (1).

51731341 is an equidigital number, since it uses as much as digits as its factorization.

51731341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 51731341 is about 7192.4502778956. The cubic root of 51731341 is about 372.6072024529.

The spelling of 51731341 in words is "fifty-one million, seven hundred thirty-one thousand, three hundred forty-one".