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105386618 = 2131402239
BaseRepresentation
bin1100100100000…
…01001001111010
321100022012021002
412102001021322
5203434332433
614242445002
72416525421
oct622011172
9240265232
10105386618
1154540587
122b363762
1318aab55c
14ddd42b8
1593ba9e8
hex648127a

105386618 has 8 divisors (see below), whose sum is σ = 159287040. Its totient is φ = 52290940.

The previous prime is 105386581. The next prime is 105386623. The reversal of 105386618 is 816683501.

It is a happy number.

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

It is a super-2 number, since 2×1053866182 = 22212678506955848, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 200858 + ... + 201381.

It is an arithmetic number, because the mean of its divisors is an integer number (19910880).

Almost surely, 2105386618 is an apocalyptic number.

105386618 is a deficient number, since it is larger than the sum of its proper divisors (53900422).

105386618 is a wasteful number, since it uses less digits than its factorization.

105386618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402372.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 105386618 is about 10265.7984589607. The cubic root of 105386618 is about 472.3477190933.

The spelling of 105386618 in words is "one hundred five million, three hundred eighty-six thousand, six hundred eighteen".

Divisors: 1 2 131 262 402239 804478 52693309 105386618