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68092223 = 655310391
BaseRepresentation
bin1000000111100…
…00000100111111
311202010102222012
410003300010333
5114412422343
610431241435
71454526413
oct403600477
9152112865
1068092223
1135488771
121a97927b
1311151374
149086d43
155ea0718
hex40f013f

68092223 has 4 divisors (see below), whose sum is σ = 68109168. Its totient is φ = 68075280.

The previous prime is 68092207. The next prime is 68092229. The reversal of 68092223 is 32229086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68092223 - 24 = 68092207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68092223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68092229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (17027292).

Almost surely, 268092223 is an apocalyptic number.

68092223 is a deficient number, since it is larger than the sum of its proper divisors (16945).

68092223 is a wasteful number, since it uses less digits than its factorization.

68092223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16944.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 68092223 is about 8251.8011973144. The cubic root of 68092223 is about 408.3499476603.

The spelling of 68092223 in words is "sixty-eight million, ninety-two thousand, two hundred twenty-three".

Divisors: 1 6553 10391 68092223