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78063101 is a prime number
BaseRepresentation
bin1001010011100…
…10010111111101
312102220000102222
410221302113331
5124441004401
611425055125
71635345134
oct451622775
9172800388
1078063101
1140078a66
12221874a5
13132328ac
14a52091b
156cbec1b
hex4a725fd

78063101 has 2 divisors, whose sum is σ = 78063102. Its totient is φ = 78063100.

The previous prime is 78063059. The next prime is 78063119. The reversal of 78063101 is 10136087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73444900 + 4618201 = 8570^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 78063101 - 210 = 78062077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78063121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39031550 + 39031551.

It is an arithmetic number, because the mean of its divisors is an integer number (39031551).

Almost surely, 278063101 is an apocalyptic number.

It is an amenable number.

78063101 is a deficient number, since it is larger than the sum of its proper divisors (1).

78063101 is an equidigital number, since it uses as much as digits as its factorization.

78063101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 78063101 is about 8835.3325347720. The cubic root of 78063101 is about 427.3810546504.

Adding to 78063101 its reverse (10136087), we get a palindrome (88199188).

The spelling of 78063101 in words is "seventy-eight million, sixty-three thousand, one hundred one".