Search a number
-
+
2957531 is a prime number
BaseRepresentation
bin1011010010000011011011
312120020222012
423102003123
51224120111
6143220135
734065353
oct13220333
95506865
102957531
111740045
12ba764b
137c7225
1456db63
153d648b
hex2d20db

2957531 has 2 divisors, whose sum is σ = 2957532. Its totient is φ = 2957530.

The previous prime is 2957489. The next prime is 2957579. The reversal of 2957531 is 1357592.

2957531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2957531 is a prime.

It is a super-2 number, since 2×29575312 = 17493979231922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2957231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1478765 + 1478766.

It is an arithmetic number, because the mean of its divisors is an integer number (1478766).

22957531 is an apocalyptic number.

2957531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2957531 is an equidigital number, since it uses as much as digits as its factorization.

2957531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 2957531 is about 1719.7473651673. The cubic root of 2957531 is about 143.5411545734.

The spelling of 2957531 in words is "two million, nine hundred fifty-seven thousand, five hundred thirty-one".