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61295960269 is a prime number
BaseRepresentation
bin111001000101100001…
…100010000011001101
312212012211011102000201
4321011201202003031
52001013231212034
644054201053501
74266654031345
oct710541420315
9185184142021
1061295960269
1123aa4a76205
12ba67a87291
135a1b0ac49b
142d76a41d25
1518db3e6014
hexe458620cd

61295960269 has 2 divisors, whose sum is σ = 61295960270. Its totient is φ = 61295960268.

The previous prime is 61295960237. The next prime is 61295960329. The reversal of 61295960269 is 96206959216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56578331044 + 4717629225 = 237862^2 + 68685^2 .

It is a cyclic number.

It is not a de Polignac number, because 61295960269 - 25 = 61295960237 is a prime.

It is a super-2 number, since 2×612959602692 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61295960569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30647980134 + 30647980135.

It is an arithmetic number, because the mean of its divisors is an integer number (30647980135).

Almost surely, 261295960269 is an apocalyptic number.

It is an amenable number.

61295960269 is a deficient number, since it is larger than the sum of its proper divisors (1).

61295960269 is an equidigital number, since it uses as much as digits as its factorization.

61295960269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 61295960269 in words is "sixty-one billion, two hundred ninety-five million, nine hundred sixty thousand, two hundred sixty-nine".