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105090386 = 252545193
BaseRepresentation
bin1100100001110…
…00110101010010
321022202010220112
412100320311102
5203400343021
614232241322
72414152652
oct620706522
9238663815
10105090386
1154358a65
122b240242
1318a0677b
14dd58362
15935cd5b
hex6438d52

105090386 has 4 divisors (see below), whose sum is σ = 157635582. Its totient is φ = 52545192.

The previous prime is 105090383. The next prime is 105090431. The reversal of 105090386 is 683090501.

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

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 3705625 = 10069^2 + 1925^2 .

It is a super-2 number, since 2×1050903862 = 22087978459257992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105090383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26272595 + ... + 26272598.

Almost surely, 2105090386 is an apocalyptic number.

105090386 is a deficient number, since it is larger than the sum of its proper divisors (52545196).

105090386 is an equidigital number, since it uses as much as digits as its factorization.

105090386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52545195.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 105090386 is about 10251.3602024317. The cubic root of 105090386 is about 471.9047285687.

The spelling of 105090386 in words is "one hundred five million, ninety thousand, three hundred eighty-six".

Divisors: 1 2 52545193 105090386