Search a number
-
+
68695629 = 389257287
BaseRepresentation
bin1000001100000…
…11011001001101
311210021002200120
410012003121031
5120041230004
610452215153
71462621542
oct406033115
9153232616
1068695629
1135860052
121b00a4b9
1311302c02
1491a2bc9
15606e3d9
hex418364d

68695629 has 8 divisors (see below), whose sum is σ = 92623680. Its totient is φ = 45282336.

The previous prime is 68695619. The next prime is 68695631. The reversal of 68695629 is 92659686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68695629 - 223 = 60307021 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68695619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128377 + ... + 128910.

It is an arithmetic number, because the mean of its divisors is an integer number (11577960).

Almost surely, 268695629 is an apocalyptic number.

It is an amenable number.

68695629 is a deficient number, since it is larger than the sum of its proper divisors (23928051).

68695629 is a wasteful number, since it uses less digits than its factorization.

68695629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257379.

The product of its digits is 1399680, while the sum is 51.

The square root of 68695629 is about 8288.2826327292. The cubic root of 68695629 is about 409.5526133236.

The spelling of 68695629 in words is "sixty-eight million, six hundred ninety-five thousand, six hundred twenty-nine".

Divisors: 1 3 89 267 257287 771861 22898543 68695629