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66426622 = 2192376003
BaseRepresentation
bin1111110101100…
…1011011111110
311121222211012021
43331121123332
5114001122442
610331430354
71434421423
oct375313376
9147884167
1066426622
1134550339
121a2b53ba
13109ba1c2
148b71d4a
155c71e67
hex3f596fe

66426622 has 16 divisors (see below), whose sum is σ = 109445760. Its totient is φ = 30096792.

The previous prime is 66426587. The next prime is 66426623. The reversal of 66426622 is 22662466.

It is a super-2 number, since 2×664266222 = 8824992220661768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66426623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37128 + ... + 38875.

It is an arithmetic number, because the mean of its divisors is an integer number (6840360).

Almost surely, 266426622 is an apocalyptic number.

66426622 is a deficient number, since it is larger than the sum of its proper divisors (43019138).

66426622 is a wasteful number, since it uses less digits than its factorization.

66426622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76047.

The product of its digits is 41472, while the sum is 34.

The square root of 66426622 is about 8150.2528795124. The cubic root of 66426622 is about 404.9928810414.

The spelling of 66426622 in words is "sixty-six million, four hundred twenty-six thousand, six hundred twenty-two".

Divisors: 1 2 19 23 38 46 437 874 76003 152006 1444057 1748069 2888114 3496138 33213311 66426622