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105530009 = 1319427247
BaseRepresentation
bin1100100101001…
…00001010011001
321100120110221212
412102210022121
5204003430014
614245512505
72420663444
oct622441231
9240513855
10105530009
1154629292
122b412735
1318b2b8c0
141003065b
1593e823e
hex64a4299

105530009 has 8 divisors (see below), whose sum is σ = 119629440. Its totient is φ = 92285136.

The previous prime is 105529997. The next prime is 105530011. The reversal of 105530009 is 900035501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105530009 is a prime.

It is a super-2 number, since 2×1055300092 = 22273165599080162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105530039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213377 + ... + 213870.

It is an arithmetic number, because the mean of its divisors is an integer number (14953680).

Almost surely, 2105530009 is an apocalyptic number.

105530009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

105530009 is a deficient number, since it is larger than the sum of its proper divisors (14099431).

105530009 is a wasteful number, since it uses less digits than its factorization.

105530009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427279.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 105530009 is about 10272.7800034849. The cubic root of 105530009 is about 472.5618503807.

The spelling of 105530009 in words is "one hundred five million, five hundred thirty thousand, nine".

Divisors: 1 13 19 247 427247 5554211 8117693 105530009