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3131163041 is a prime number
BaseRepresentation
bin1011101010100001…
…1100000110100001
322002012211120012112
42322220130012201
522403034204131
61234411405105
7140410306136
oct27250340641
98065746175
103131163041
111367507156
12734753795
133ab9194c6
14219bca58d
15134d5202b
hexbaa1c1a1

3131163041 has 2 divisors, whose sum is σ = 3131163042. Its totient is φ = 3131163040.

The previous prime is 3131163019. The next prime is 3131163043. The reversal of 3131163041 is 1403611313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2490010000 + 641153041 = 49900^2 + 25321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3131163041 is a prime.

Together with 3131163043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3131162998 and 3131163016.

It is not a weakly prime, because it can be changed into another prime (3131163043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565581520 + 1565581521.

It is an arithmetic number, because the mean of its divisors is an integer number (1565581521).

Almost surely, 23131163041 is an apocalyptic number.

It is an amenable number.

3131163041 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131163041 is an equidigital number, since it uses as much as digits as its factorization.

3131163041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3131163041 is about 55956.7962002829. The cubic root of 3131163041 is about 1462.9693495026.

Adding to 3131163041 its reverse (1403611313), we get a palindrome (4534774354).

The spelling of 3131163041 in words is "three billion, one hundred thirty-one million, one hundred sixty-three thousand, forty-one".