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66122046 = 2324385429
BaseRepresentation
bin1111110000111…
…1000100111110
311121102100101200
43330033010332
5113411401141
610321120330
71432012434
oct374170476
9147370350
1066122046
1134362521
121a1890a6
1310911693
148ad2d54
155c11ab6
hex3f0f13e

66122046 has 24 divisors (see below), whose sum is σ = 146597880. Its totient is φ = 21527856.

The previous prime is 66122029. The next prime is 66122047. The reversal of 66122046 is 64022166.

It is a happy number.

66122046 is a `hidden beast` number, since 6 + 612 + 2 + 0 + 46 = 666.

It is a super-2 number, since 2×661220462 = 8744249934452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66122047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41941 + ... + 43488.

It is an arithmetic number, because the mean of its divisors is an integer number (6108245).

Almost surely, 266122046 is an apocalyptic number.

66122046 is an abundant number, since it is smaller than the sum of its proper divisors (80475834).

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

66122046 is a wasteful number, since it uses less digits than its factorization.

66122046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85480 (or 85477 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 66122046 is about 8131.5463474053. The cubic root of 66122046 is about 404.3729482619.

The spelling of 66122046 in words is "sixty-six million, one hundred twenty-two thousand, forty-six".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 85429 170858 256287 512574 768861 1537722 3673447 7346894 11020341 22040682 33061023 66122046