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66141470 = 2519714903
BaseRepresentation
bin1111110001001…
…1110100011110
311121110100001002
43330103310132
5113413011340
610321350302
71432123163
oct374236436
9147410032
1066141470
113437607a
121a198392
131091a485
148ada06a
155c17715
hex3f13d1e

66141470 has 32 divisors (see below), whose sum is σ = 127111680. Its totient is φ = 24706080.

The previous prime is 66141469. The next prime is 66141497. The reversal of 66141470 is 7414166.

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, 11039 + ... + 15941.

It is an arithmetic number, because the mean of its divisors is an integer number (3972240).

Almost surely, 266141470 is an apocalyptic number.

66141470 is a deficient number, since it is larger than the sum of its proper divisors (60970210).

66141470 is a wasteful number, since it uses less digits than its factorization.

66141470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 66141470 is about 8132.7406204797. The cubic root of 66141470 is about 404.4125405595.

The spelling of 66141470 in words is "sixty-six million, one hundred forty-one thousand, four hundred seventy".

Divisors: 1 2 5 10 19 38 71 95 142 190 355 710 1349 2698 4903 6745 9806 13490 24515 49030 93157 186314 348113 465785 696226 931570 1740565 3481130 6614147 13228294 33070735 66141470