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65293213 is a prime number
BaseRepresentation
bin1111100100010…
…0101110011101
311112212020110011
43321010232131
5113203340323
610251243221
71421661136
oct371045635
9145766404
1065293213
1133946837
1219a49511
13106b134b
148958c8d
155aeb20d
hex3e44b9d

65293213 has 2 divisors, whose sum is σ = 65293214. Its totient is φ = 65293212.

The previous prime is 65293201. The next prime is 65293247. The reversal of 65293213 is 31239256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49942489 + 15350724 = 7067^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 65293213 - 29 = 65292701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65293013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32646606 + 32646607.

It is an arithmetic number, because the mean of its divisors is an integer number (32646607).

Almost surely, 265293213 is an apocalyptic number.

It is an amenable number.

65293213 is a deficient number, since it is larger than the sum of its proper divisors (1).

65293213 is an equidigital number, since it uses as much as digits as its factorization.

65293213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 65293213 is about 8080.4215855362. The cubic root of 65293213 is about 402.6762480573.

The spelling of 65293213 in words is "sixty-five million, two hundred ninety-three thousand, two hundred thirteen".