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65085069 = 374996211
BaseRepresentation
bin1111100001000…
…1111010001101
311112110122221010
43320101322031
5113130210234
610242555433
71420133250
oct370217215
9145418833
1065085069
1133814415
1219968b79
131063a69a
148903097
155aa96e9
hex3e11e8d

65085069 has 16 divisors (see below), whose sum is σ = 99392000. Its totient is φ = 37110960.

The previous prime is 65085043. The next prime is 65085071. The reversal of 65085069 is 96058056.

It is not a de Polignac number, because 65085069 - 25 = 65085037 is a prime.

It is a super-2 number, since 2×650850692 = 8472132413469522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65085029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7374 + ... + 13584.

It is an arithmetic number, because the mean of its divisors is an integer number (6212000).

Almost surely, 265085069 is an apocalyptic number.

It is an amenable number.

65085069 is a deficient number, since it is larger than the sum of its proper divisors (34306931).

65085069 is a wasteful number, since it uses less digits than its factorization.

65085069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 65085069 is about 8067.5317786793. The cubic root of 65085069 is about 402.2479040707.

The spelling of 65085069 in words is "sixty-five million, eighty-five thousand, sixty-nine".

Divisors: 1 3 7 21 499 1497 3493 6211 10479 18633 43477 130431 3099289 9297867 21695023 65085069