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7227530131 is a prime number
BaseRepresentation
bin1101011101100101…
…10101101110010011
3200122200212120110011
412232302311232103
5104300221431011
63153103015351
7344050664263
oct65662655623
920580776404
107227530131
1130798303a8
12149859a557
138b24abc63
144c7c677a3
152c47b0621
hex1aecb5b93

7227530131 has 2 divisors, whose sum is σ = 7227530132. Its totient is φ = 7227530130.

The previous prime is 7227530119. The next prime is 7227530147. The reversal of 7227530131 is 1310357227.

7227530131 is digitally balanced in base 3, 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 not a de Polignac number, because 7227530131 - 211 = 7227528083 is a prime.

It is a super-2 number, since 2×72275301312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7227530093 and 7227530102.

It is not a weakly prime, because it can be changed into another prime (7227530831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3613765065 + 3613765066.

It is an arithmetic number, because the mean of its divisors is an integer number (3613765066).

Almost surely, 27227530131 is an apocalyptic number.

7227530131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7227530131 is an equidigital number, since it uses as much as digits as its factorization.

7227530131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 7227530131 is about 85014.8818207730. The cubic root of 7227530131 is about 1933.4367547297.

Adding to 7227530131 its reverse (1310357227), we get a palindrome (8537887358).

The spelling of 7227530131 in words is "seven billion, two hundred twenty-seven million, five hundred thirty thousand, one hundred thirty-one".