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105297393 = 335099131
BaseRepresentation
bin1100100011010…
…11010111110001
321100010122212110
412101223113301
5203424004033
614240515533
72416004325
oct621532761
9240118773
10105297393
115448a543
122b31bba9
1318a79a66
14ddad985
15939e363
hex646b5f1

105297393 has 4 divisors (see below), whose sum is σ = 140396528. Its totient is φ = 70198260.

The previous prime is 105297391. The next prime is 105297397. The reversal of 105297393 is 393792501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 393792501 = 3131264167.

It is not a de Polignac number, because 105297393 - 21 = 105297391 is a prime.

It is a super-2 number, since 2×1052973932 = 22175081945192898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105297391) 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, 17549563 + ... + 17549568.

It is an arithmetic number, because the mean of its divisors is an integer number (35099132).

Almost surely, 2105297393 is an apocalyptic number.

It is an amenable number.

105297393 is a deficient number, since it is larger than the sum of its proper divisors (35099135).

105297393 is an equidigital number, since it uses as much as digits as its factorization.

105297393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35099134.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 105297393 is about 10261.4517978695. The cubic root of 105297393 is about 472.2143779233.

The spelling of 105297393 in words is "one hundred five million, two hundred ninety-seven thousand, three hundred ninety-three".

Divisors: 1 3 35099131 105297393