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66062045 = 572269641
BaseRepresentation
bin1111110000000…
…0011011011101
311121022022002102
43330000123131
5113402441140
610315534445
71431342500
oct374003335
9147268072
1066062045
1134321435
121a15a425
13108c028a
148ab9137
155bede15
hex3f006dd

66062045 has 12 divisors (see below), whose sum is σ = 92217564. Its totient is φ = 45299520.

The previous prime is 66062039. The next prime is 66062071. The reversal of 66062045 is 54026066.

It can be written as a sum of positive squares in 2 ways, for example, as 38204761 + 27857284 = 6181^2 + 5278^2 .

It is a de Polignac number, because none of the positive numbers 2k-66062045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66061999 and 66062017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134576 + ... + 135065.

It is an arithmetic number, because the mean of its divisors is an integer number (7684797).

Almost surely, 266062045 is an apocalyptic number.

It is an amenable number.

66062045 is a deficient number, since it is larger than the sum of its proper divisors (26155519).

66062045 is a wasteful number, since it uses less digits than its factorization.

66062045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269660 (or 269653 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66062045 is about 8127.8561133918. The cubic root of 66062045 is about 404.2505981263.

The spelling of 66062045 in words is "sixty-six million, sixty-two thousand, forty-five".

Divisors: 1 5 7 35 49 245 269641 1348205 1887487 9437435 13212409 66062045