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105752289 = 3283124561
BaseRepresentation
bin1100100110110…
…10011011100001
321100222202212110
412103122123201
5204033033124
614254345533
72422610466
oct623323341
9240882773
10105752289
1154770295
122b4bb2a9
1318ba8b26
141008b66d
15943e029
hex64da6e1

105752289 has 8 divisors (see below), whose sum is σ = 141502432. Its totient is φ = 70251840.

The previous prime is 105752287. The next prime is 105752329. The reversal of 105752289 is 982257501.

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

It is not a de Polignac number, because 105752289 - 21 = 105752287 is a prime.

It is a super-2 number, since 2×1057522892 = 22367093257479042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105752287) 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, 61432 + ... + 63129.

It is an arithmetic number, because the mean of its divisors is an integer number (17687804).

Almost surely, 2105752289 is an apocalyptic number.

It is an amenable number.

105752289 is a deficient number, since it is larger than the sum of its proper divisors (35750143).

105752289 is a wasteful number, since it uses less digits than its factorization.

105752289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124847.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 105752289 is about 10283.5931949878. The cubic root of 105752289 is about 472.8934065742.

The spelling of 105752289 in words is "one hundred five million, seven hundred fifty-two thousand, two hundred eighty-nine".

Divisors: 1 3 283 849 124561 373683 35250763 105752289