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68166472 = 23112926711
BaseRepresentation
bin1000001000000…
…10001101001000
311202021012211011
410010002031020
5114422311342
610433013304
71455256033
oct404021510
9152235734
1068166472
1135529530
121a9b4234
13111790ba
1490a601a
155eb7717
hex4102348

68166472 has 32 divisors (see below), whose sum is σ = 144244800. Its totient is φ = 29915200.

The previous prime is 68166431. The next prime is 68166479. The reversal of 68166472 is 27466186.

It is not an unprimeable number, because it can be changed into a prime (68166479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10804 + ... + 15907.

It is an arithmetic number, because the mean of its divisors is an integer number (4507650).

Almost surely, 268166472 is an apocalyptic number.

It is an amenable number.

68166472 is an abundant number, since it is smaller than the sum of its proper divisors (76078328).

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

68166472 is a wasteful number, since it uses less digits than its factorization.

68166472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26757 (or 26753 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 68166472 is about 8256.2989286968. The cubic root of 68166472 is about 408.4983178180.

The spelling of 68166472 in words is "sixty-eight million, one hundred sixty-six thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 232 319 638 1276 2552 26711 53422 106844 213688 293821 587642 774619 1175284 1549238 2350568 3098476 6196952 8520809 17041618 34083236 68166472