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68167773 = 3217445541
BaseRepresentation
bin1000001000000…
…10100001011101
311202021021121100
410010002201131
5114422332043
610433023313
71455262602
oct404024135
9152237540
1068167773
113552a503
121a9b4b39
131117987b
1490a66a9
155eb7cd3
hex410285d

68167773 has 12 divisors (see below), whose sum is σ = 104256828. Its totient is φ = 42771840.

The previous prime is 68167753. The next prime is 68167783. The reversal of 68167773 is 37776186.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42341049 + 25826724 = 6507^2 + 5082^2 .

It is not a de Polignac number, because 68167773 - 220 = 67119197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68167703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222618 + ... + 222923.

It is an arithmetic number, because the mean of its divisors is an integer number (8688069).

Almost surely, 268167773 is an apocalyptic number.

It is an amenable number.

68167773 is a deficient number, since it is larger than the sum of its proper divisors (36089055).

68167773 is a wasteful number, since it uses less digits than its factorization.

68167773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445564 (or 445561 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 68167773 is about 8256.3777166503. The cubic root of 68167773 is about 408.5009166173.

The spelling of 68167773 in words is "sixty-eight million, one hundred sixty-seven thousand, seven hundred seventy-three".

Divisors: 1 3 9 17 51 153 445541 1336623 4009869 7574197 22722591 68167773