Search a number
-
+
68951101 is a prime number
BaseRepresentation
bin1000001110000…
…01110000111101
311210202002010111
410013001300331
5120122413401
610501510021
71465034422
oct407016075
9153662114
1068951101
1135a14a8a
121b112311
131139228b
14922bd49
1560bee51
hex41c1c3d

68951101 has 2 divisors, whose sum is σ = 68951102. Its totient is φ = 68951100.

The previous prime is 68951093. The next prime is 68951147. The reversal of 68951101 is 10115986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52911076 + 16040025 = 7274^2 + 4005^2 .

It is a cyclic number.

It is not a de Polignac number, because 68951101 - 23 = 68951093 is a prime.

It is a super-2 number, since 2×689511012 = 9508508658224402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68951501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34475550 + 34475551.

It is an arithmetic number, because the mean of its divisors is an integer number (34475551).

Almost surely, 268951101 is an apocalyptic number.

It is an amenable number.

68951101 is a deficient number, since it is larger than the sum of its proper divisors (1).

68951101 is an equidigital number, since it uses as much as digits as its factorization.

68951101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 68951101 is about 8303.6799673398. The cubic root of 68951101 is about 410.0596799899.

The spelling of 68951101 in words is "sixty-eight million, nine hundred fifty-one thousand, one hundred one".