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68147022 = 23231672957
BaseRepresentation
bin1000000111111…
…01011101001110
311202020020010210
410003331131032
5114421201042
610432343250
71455145236
oct403753516
9152206123
1068147022
1135515959
121a9a4b26
13111702a8
14909ccc6
155eb1a9c
hex40fd74e

68147022 has 32 divisors (see below), whose sum is σ = 143119872. Its totient is φ = 21590624.

The previous prime is 68147011. The next prime is 68147077. The reversal of 68147022 is 22074186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21568 + ... + 24524.

It is an arithmetic number, because the mean of its divisors is an integer number (4472496).

Almost surely, 268147022 is an apocalyptic number.

68147022 is an abundant number, since it is smaller than the sum of its proper divisors (74972850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68147022 is a wasteful number, since it uses less digits than its factorization.

68147022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 68147022 is about 8255.1209561096. The cubic root of 68147022 is about 408.4594617262.

The spelling of 68147022 in words is "sixty-eight million, one hundred forty-seven thousand, twenty-two".

Divisors: 1 2 3 6 23 46 69 138 167 334 501 1002 2957 3841 5914 7682 8871 11523 17742 23046 68011 136022 204033 408066 493819 987638 1481457 2962914 11357837 22715674 34073511 68147022