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66846038 = 275390089
BaseRepresentation
bin1111111011111…
…1110101010110
311122210010112012
43332333311112
5114103033123
610344424222
71441116260
oct376776526
9148703465
1066846038
1134807466
121a478072
1310b0608c
148c40b30
155d06378
hex3fbfd56

66846038 has 16 divisors (see below), whose sum is σ = 116756640. Its totient is φ = 28107456.

The previous prime is 66846011. The next prime is 66846041. The reversal of 66846038 is 83064866.

It is a junction number, because it is equal to n+sod(n) for n = 66845986 and 66846004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44303 + ... + 45786.

It is an arithmetic number, because the mean of its divisors is an integer number (7297290).

Almost surely, 266846038 is an apocalyptic number.

66846038 is a deficient number, since it is larger than the sum of its proper divisors (49910602).

66846038 is a wasteful number, since it uses less digits than its factorization.

66846038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90151.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 66846038 is about 8175.9426367851. The cubic root of 66846038 is about 405.8434649367.

The spelling of 66846038 in words is "sixty-six million, eight hundred forty-six thousand, thirty-eight".

Divisors: 1 2 7 14 53 106 371 742 90089 180178 630623 1261246 4774717 9549434 33423019 66846038