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105620317 = 1131309737
BaseRepresentation
bin1100100101110…
…10001101011101
321100202001211121
412102322031131
5204014322232
614251450541
72421520645
oct622721535
9240661747
10105620317
1154690120
122b456a51
1318b60a3a
1410055525
159414d97
hex64ba35d

105620317 has 8 divisors (see below), whose sum is σ = 118939392. Its totient is φ = 92920800.

The previous prime is 105620243. The next prime is 105620321. The reversal of 105620317 is 713026501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105620317 - 27 = 105620189 is a prime.

It is a super-2 number, since 2×1056203172 = 22311302726360978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105620291 and 105620300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105620357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154528 + ... + 155209.

It is an arithmetic number, because the mean of its divisors is an integer number (14867424).

Almost surely, 2105620317 is an apocalyptic number.

It is an amenable number.

105620317 is a deficient number, since it is larger than the sum of its proper divisors (13319075).

105620317 is a wasteful number, since it uses less digits than its factorization.

105620317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309779.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 105620317 is about 10277.1745630791. The cubic root of 105620317 is about 472.6966112521.

Adding to 105620317 its reverse (713026501), we get a palindrome (818646818).

The spelling of 105620317 in words is "one hundred five million, six hundred twenty thousand, three hundred seventeen".

Divisors: 1 11 31 341 309737 3407107 9601847 105620317