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68274371 = 112564251
BaseRepresentation
bin1000001000111…
…00100011000011
311202110200211102
410010130203003
5114434234441
610435205015
71456215434
oct404344303
9152420742
1068274371
11355a2600
121aa4676b
13111b6249
1490d348b
155ed969b
hex411c8c3

68274371 has 6 divisors (see below), whose sum is σ = 75045516. Its totient is φ = 62067500.

The previous prime is 68274347. The next prime is 68274403. The reversal of 68274371 is 17347286.

It is a de Polignac number, because none of the positive numbers 2k-68274371 is a prime.

It is a super-2 number, since 2×682743712 = 9322779470891282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68274341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282005 + ... + 282246.

It is an arithmetic number, because the mean of its divisors is an integer number (12507586).

Almost surely, 268274371 is an apocalyptic number.

68274371 is a deficient number, since it is larger than the sum of its proper divisors (6771145).

68274371 is a wasteful number, since it uses less digits than its factorization.

68274371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564273 (or 564262 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 68274371 is about 8262.8306892977. The cubic root of 68274371 is about 408.7137381131.

The spelling of 68274371 in words is "sixty-eight million, two hundred seventy-four thousand, three hundred seventy-one".

Divisors: 1 11 121 564251 6206761 68274371