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68163135 = 354544209
BaseRepresentation
bin1000001000000…
…01011000111111
311202021001020120
410010001120333
5114422210020
610432550023
71455243225
oct404013077
9152231216
1068163135
1135526a77
121a9b2313
1311177721
1490a4b15
155eb6740
hex410163f

68163135 has 8 divisors (see below), whose sum is σ = 109061040. Its totient is φ = 36353664.

The previous prime is 68163133. The next prime is 68163163. The reversal of 68163135 is 53136186.

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

It is not a de Polignac number, because 68163135 - 21 = 68163133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68163096 and 68163105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68163131) 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, 2272090 + ... + 2272119.

It is an arithmetic number, because the mean of its divisors is an integer number (13632630).

Almost surely, 268163135 is an apocalyptic number.

68163135 is a deficient number, since it is larger than the sum of its proper divisors (40897905).

68163135 is a wasteful number, since it uses less digits than its factorization.

68163135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544217.

The product of its digits is 12960, while the sum is 33.

The square root of 68163135 is about 8256.0968380949. The cubic root of 68163135 is about 408.4916518766.

The spelling of 68163135 in words is "sixty-eight million, one hundred sixty-three thousand, one hundred thirty-five".

Divisors: 1 3 5 15 4544209 13632627 22721045 68163135