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66000230 = 2529376151
BaseRepresentation
bin1111101111000…
…1010101100110
311121012011021222
43323301111212
5113344001410
610314340342
71430664332
oct373612546
9147164258
1066000230
1134289a4a
121a12a6b2
131089b0ba
148aa07c2
155bda955
hex3ef1566

66000230 has 32 divisors (see below), whose sum is σ = 126239040. Its totient is φ = 24796800.

The previous prime is 66000229. The next prime is 66000247. The reversal of 66000230 is 3200066.

It is a junction number, because it is equal to n+sod(n) for n = 66000199 and 66000208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7655 + ... + 13805.

It is an arithmetic number, because the mean of its divisors is an integer number (3944970).

Almost surely, 266000230 is an apocalyptic number.

66000230 is a deficient number, since it is larger than the sum of its proper divisors (60238810).

66000230 is a wasteful number, since it uses less digits than its factorization.

66000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 66000230 is about 8124.0525601451. The cubic root of 66000230 is about 404.1244714986.

Adding to 66000230 its reverse (3200066), we get a palindrome (69200296).

The spelling of 66000230 in words is "sixty-six million, two hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 10 29 37 58 74 145 185 290 370 1073 2146 5365 6151 10730 12302 30755 61510 178379 227587 356758 455174 891895 1137935 1783790 2275870 6600023 13200046 33000115 66000230