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65085223 = 79297889
BaseRepresentation
bin1111100001000…
…1111100100111
311112110200010211
43320101330213
5113130211343
610243000251
71420133560
oct370217447
9145420124
1065085223
1133814545
1219969087
131063a788
148903167
155aa979d
hex3e11f27

65085223 has 4 divisors (see below), whose sum is σ = 74383120. Its totient is φ = 55787328.

The previous prime is 65085199. The next prime is 65085233. The reversal of 65085223 is 32258056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65085223 - 25 = 65085191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65085233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4648938 + ... + 4648951.

It is an arithmetic number, because the mean of its divisors is an integer number (18595780).

Almost surely, 265085223 is an apocalyptic number.

65085223 is a deficient number, since it is larger than the sum of its proper divisors (9297897).

65085223 is an equidigital number, since it uses as much as digits as its factorization.

65085223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297896.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 65085223 is about 8067.5413231046. The cubic root of 65085223 is about 402.2482213279.

The spelling of 65085223 in words is "sixty-five million, eighty-five thousand, two hundred twenty-three".

Divisors: 1 7 9297889 65085223