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56860846993 is a prime number
BaseRepresentation
bin110100111101001010…
…111010101110010001
312102202201201022101001
4310331022322232101
51412422334100433
642042125142001
74052031140056
oct647512725621
9172681638331
1056860846993
1122129513a35
12b02a6ba901
1354922a3cc2
142a759c702d
15172bd7357d
hexd3d2bab91

56860846993 has 2 divisors, whose sum is σ = 56860846994. Its totient is φ = 56860846992.

The previous prime is 56860846963. The next prime is 56860847009. The reversal of 56860846993 is 39964806865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28808951824 + 28051895169 = 169732^2 + 167487^2 .

It is a cyclic number.

It is not a de Polignac number, because 56860846993 - 25 = 56860846961 is a prime.

It is a super-2 number, since 2×568608469932 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56860846963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28430423496 + 28430423497.

It is an arithmetic number, because the mean of its divisors is an integer number (28430423497).

Almost surely, 256860846993 is an apocalyptic number.

It is an amenable number.

56860846993 is a deficient number, since it is larger than the sum of its proper divisors (1).

56860846993 is an equidigital number, since it uses as much as digits as its factorization.

56860846993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 56860846993 in words is "fifty-six billion, eight hundred sixty million, eight hundred forty-six thousand, nine hundred ninety-three".