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105625193 = 148970937
BaseRepresentation
bin1100100101110…
…11011001101001
321100202022112012
412102323121221
5204020001233
614251525305
72421541112
oct622733151
9240668465
10105625193
1154693853
122b459835
1318b6301b
1410057209
159416548
hex64bb669

105625193 has 4 divisors (see below), whose sum is σ = 105697620. Its totient is φ = 105552768.

The previous prime is 105625187. The next prime is 105625207. The reversal of 105625193 is 391526501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391526501 = 443883807.

It can be written as a sum of positive squares in 2 ways, for example, as 23396569 + 82228624 = 4837^2 + 9068^2 .

It is a cyclic number.

It is not a de Polignac number, because 105625193 - 26 = 105625129 is a prime.

It is a super-2 number, since 2×1056251932 = 22313362792574498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105625183) 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, 33980 + ... + 36957.

It is an arithmetic number, because the mean of its divisors is an integer number (26424405).

Almost surely, 2105625193 is an apocalyptic number.

It is an amenable number.

105625193 is a deficient number, since it is larger than the sum of its proper divisors (72427).

105625193 is an equidigital number, since it uses as much as digits as its factorization.

105625193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72426.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 105625193 is about 10277.4117850751. The cubic root of 105625193 is about 472.7038852100.

The spelling of 105625193 in words is "one hundred five million, six hundred twenty-five thousand, one hundred ninety-three".

Divisors: 1 1489 70937 105625193