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66132486 = 23273116931
BaseRepresentation
bin1111110001000…
…1101000000110
311121102212201100
43330101220012
5113412214421
610321240530
71432055040
oct374215006
9147385640
1066132486
113436a352
121a193146
1310916364
148ad6a90
155c14c26
hex3f11a06

66132486 has 48 divisors (see below), whose sum is σ = 169049088. Its totient is φ = 18284400.

The previous prime is 66132481. The next prime is 66132487. The reversal of 66132486 is 68423166.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66132486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66132481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4560 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (3521856).

Almost surely, 266132486 is an apocalyptic number.

66132486 is an abundant number, since it is smaller than the sum of its proper divisors (102916602).

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

66132486 is a wasteful number, since it uses less digits than its factorization.

66132486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16977 (or 16974 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 66132486 is about 8132.1882663893. The cubic root of 66132486 is about 404.3942292701.

The spelling of 66132486 in words is "sixty-six million, one hundred thirty-two thousand, four hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 31 42 62 63 93 126 186 217 279 434 558 651 1302 1953 3906 16931 33862 50793 101586 118517 152379 237034 304758 355551 524861 711102 1049722 1066653 1574583 2133306 3149166 3674027 4723749 7348054 9447498 11022081 22044162 33066243 66132486