Search a number
-
+
78011041 is a prime number
BaseRepresentation
bin1001010011001…
…01101010100001
312102210101000211
410221211222201
5124432323131
611424014121
71635040303
oct451455241
9172711024
1078011041
1140042939
1222161341
1313214ca4
14a509973
156cae5b1
hex4a65aa1

78011041 has 2 divisors, whose sum is σ = 78011042. Its totient is φ = 78011040.

The previous prime is 78011029. The next prime is 78011053. The reversal of 78011041 is 14011087.

It is a balanced prime because it is at equal distance from previous prime (78011029) and next prime (78011053).

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 34398225 = 6604^2 + 5865^2 .

It is an emirp because it is prime and its reverse (14011087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78011041 - 27 = 78010913 is a prime.

It is not a weakly prime, because it can be changed into another prime (78011341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39005520 + 39005521.

It is an arithmetic number, because the mean of its divisors is an integer number (39005521).

Almost surely, 278011041 is an apocalyptic number.

It is an amenable number.

78011041 is a deficient number, since it is larger than the sum of its proper divisors (1).

78011041 is an equidigital number, since it uses as much as digits as its factorization.

78011041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 78011041 is about 8832.3859177461. The cubic root of 78011041 is about 427.2860272291.

The spelling of 78011041 in words is "seventy-eight million, eleven thousand, forty-one".