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31054141 is a prime number
BaseRepresentation
bin111011001110…
…1100100111101
32011102201021101
41312131210331
530422213031
63025333101
7524645566
oct166354475
964381241
1031054141
1116590488
12a497191
136583a41
1441a516d
152ad6361
hex1d9d93d

31054141 has 2 divisors, whose sum is σ = 31054142. Its totient is φ = 31054140.

The previous prime is 31054109. The next prime is 31054159. The reversal of 31054141 is 14145013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 29241 = 5570^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 31054141 - 25 = 31054109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31054181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527070 + 15527071.

It is an arithmetic number, because the mean of its divisors is an integer number (15527071).

Almost surely, 231054141 is an apocalyptic number.

It is an amenable number.

31054141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31054141 is an equidigital number, since it uses as much as digits as its factorization.

31054141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 31054141 is about 5572.6242471568. The cubic root of 31054141 is about 314.3208378986.

Adding to 31054141 its reverse (14145013), we get a palindrome (45199154).

The spelling of 31054141 in words is "thirty-one million, fifty-four thousand, one hundred forty-one".