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66470094 = 23219263739
BaseRepresentation
bin1111110110010…
…0000011001110
311122002000211100
43331210003032
5114004020334
610332403530
71434662235
oct375440316
9148060740
1066470094
113457aa69
121a3165a6
1310a03c22
148b83b1c
155c7ec99
hex3f640ce

66470094 has 48 divisors (see below), whose sum is σ = 152380800. Its totient is φ = 20882448.

The previous prime is 66470087. The next prime is 66470111. The reversal of 66470094 is 49007466.

66470094 is a `hidden beast` number, since 6 + 647 + 0 + 0 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89577 + ... + 90315.

It is an arithmetic number, because the mean of its divisors is an integer number (3174600).

Almost surely, 266470094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66470094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76190400).

66470094 is an abundant number, since it is smaller than the sum of its proper divisors (85910706).

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

66470094 is a wasteful number, since it uses less digits than its factorization.

66470094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 66470094 is about 8152.9193544399. The cubic root of 66470094 is about 405.0812091381.

The spelling of 66470094 in words is "sixty-six million, four hundred seventy thousand, ninety-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 263 342 526 739 789 1478 1578 2217 2367 4434 4734 4997 6651 9994 13302 14041 14991 28082 29982 42123 44973 84246 89946 126369 194357 252738 388714 583071 1166142 1749213 3498426 3692783 7385566 11078349 22156698 33235047 66470094