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65090369 is a prime number
BaseRepresentation
bin1111100001001…
…1001101000001
311112110221012102
43320103031001
5113130342434
610243040145
71420154561
oct370231501
9145427172
1065090369
11338183a3
1219970055
131063cc16
148904da1
155aab07e
hex3e13341

65090369 has 2 divisors, whose sum is σ = 65090370. Its totient is φ = 65090368.

The previous prime is 65090357. The next prime is 65090407. The reversal of 65090369 is 96309056.

It is an a-pointer prime, because the next prime (65090407) can be obtained adding 65090369 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65011969 + 78400 = 8063^2 + 280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65090369 is a prime.

It is a super-2 number, since 2×650903692 = 8473512273112322, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65090339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32545184 + 32545185.

It is an arithmetic number, because the mean of its divisors is an integer number (32545185).

Almost surely, 265090369 is an apocalyptic number.

It is an amenable number.

65090369 is a deficient number, since it is larger than the sum of its proper divisors (1).

65090369 is an equidigital number, since it uses as much as digits as its factorization.

65090369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 65090369 is about 8067.8602491615. The cubic root of 65090369 is about 402.2588223763.

It can be divided in two parts, 650 and 90369, that added together give a palindrome (91019).

The spelling of 65090369 in words is "sixty-five million, ninety thousand, three hundred sixty-nine".