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103445461381 is a prime number
BaseRepresentation
bin110000001010111010…
…1000111100110000101
3100220000021212220201111
41200111311013212011
53143324014231011
6115304443125021
710321321625263
oct1402565074605
9326007786644
10103445461381
113a9642a2249
121806b813771
1399a7591ba2
1450148a3433
152a56972121
hex1815d47985

103445461381 has 2 divisors, whose sum is σ = 103445461382. Its totient is φ = 103445461380.

The previous prime is 103445461247. The next prime is 103445461403. The reversal of 103445461381 is 183164544301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98931637156 + 4513824225 = 314534^2 + 67185^2 .

It is a cyclic number.

It is not a de Polignac number, because 103445461381 - 29 = 103445460869 is a prime.

It is a super-3 number, since 3×1034454613813 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103445461081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51722730690 + 51722730691.

It is an arithmetic number, because the mean of its divisors is an integer number (51722730691).

Almost surely, 2103445461381 is an apocalyptic number.

It is an amenable number.

103445461381 is a deficient number, since it is larger than the sum of its proper divisors (1).

103445461381 is an equidigital number, since it uses as much as digits as its factorization.

103445461381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 103445461381 in words is "one hundred three billion, four hundred forty-five million, four hundred sixty-one thousand, three hundred eighty-one".