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97105031 is a prime number
BaseRepresentation
bin1011100100110…
…11010010000111
320202201110001122
411302123102013
5144324330111
613345144155
72256244022
oct562332207
9222643048
1097105031
114a8a44a1
122862b05b
131716bbca
14cc7a1b9
1587d1cdb
hex5c9b487

97105031 has 2 divisors, whose sum is σ = 97105032. Its totient is φ = 97105030.

The previous prime is 97104979. The next prime is 97105039. The reversal of 97105031 is 13050179.

It is a strong prime.

It is an emirp because it is prime and its reverse (13050179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97105031 - 214 = 97088647 is a prime.

It is a super-2 number, since 2×971050312 = 18858774091021922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97105039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48552515 + 48552516.

It is an arithmetic number, because the mean of its divisors is an integer number (48552516).

Almost surely, 297105031 is an apocalyptic number.

97105031 is a deficient number, since it is larger than the sum of its proper divisors (1).

97105031 is an equidigital number, since it uses as much as digits as its factorization.

97105031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 97105031 is about 9854.1885003282. The cubic root of 97105031 is about 459.6358665244.

It can be divided in two parts, 9710 and 5031, that added together give a palindrome (14741).

The spelling of 97105031 in words is "ninety-seven million, one hundred five thousand, thirty-one".