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105408907 = 199529693
BaseRepresentation
bin1100100100001…
…10100110001011
321100100022211121
412102012212023
5203441041112
614243140111
72416650412
oct622064613
9240308747
10105408907
11545562aa
122b374637
1318ab8746
14dddc479
1593c2407
hex648698b

105408907 has 4 divisors (see below), whose sum is σ = 105938800. Its totient is φ = 104879016.

The previous prime is 105408899. The next prime is 105408911. The reversal of 105408907 is 709804501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105408907 - 23 = 105408899 is a prime.

It is a super-2 number, since 2×1054089072 = 22222075349869298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105408917) 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, 264648 + ... + 265045.

It is an arithmetic number, because the mean of its divisors is an integer number (26484700).

Almost surely, 2105408907 is an apocalyptic number.

105408907 is a deficient number, since it is larger than the sum of its proper divisors (529893).

105408907 is an equidigital number, since it uses as much as digits as its factorization.

105408907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529892.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 105408907 is about 10266.8839966175. The cubic root of 105408907 is about 472.3810168572.

The spelling of 105408907 in words is "one hundred five million, four hundred eight thousand, nine hundred seven".

Divisors: 1 199 529693 105408907