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66227434 = 2713363887
BaseRepresentation
bin1111110010100…
…0110011101010
311121121200221221
43330220303222
5113423234214
610323252254
71432631620
oct374506352
9147550857
1066227434
1134424719
121a21a08a
131094a640
148b1d510
155c32e24
hex3f28cea

66227434 has 16 divisors (see below), whose sum is σ = 122266368. Its totient is φ = 26199792.

The previous prime is 66227431. The next prime is 66227437. The reversal of 66227434 is 43472266.

It is an interprime number because it is at equal distance from previous prime (66227431) and next prime (66227437).

It is a self number, because there is not a number n which added to its sum of digits gives 66227434.

It is not an unprimeable number, because it can be changed into a prime (66227431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181762 + ... + 182125.

It is an arithmetic number, because the mean of its divisors is an integer number (7641648).

Almost surely, 266227434 is an apocalyptic number.

66227434 is a deficient number, since it is larger than the sum of its proper divisors (56038934).

66227434 is a wasteful number, since it uses less digits than its factorization.

66227434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363909.

The product of its digits is 48384, while the sum is 34.

The square root of 66227434 is about 8138.0239616261. The cubic root of 66227434 is about 404.5876695630.

The spelling of 66227434 in words is "sixty-six million, two hundred twenty-seven thousand, four hundred thirty-four".

Divisors: 1 2 7 13 14 26 91 182 363887 727774 2547209 4730531 5094418 9461062 33113717 66227434