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105040686 = 2317506781
BaseRepresentation
bin1100100001011…
…00101100101110
321022122121201210
412100230230232
5203342300221
614231215250
72413555032
oct620545456
9238577653
10105040686
1154324693
122b217526
13189b9c6a
14dd441c2
15934d276
hex642cb2e

105040686 has 8 divisors (see below), whose sum is σ = 210081384. Its totient is φ = 35013560.

The previous prime is 105040681. The next prime is 105040687. The reversal of 105040686 is 686040501.

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

105040686 is an admirable number.

It is a super-2 number, since 2×1050406862 = 22067091430701192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105040681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8753385 + ... + 8753396.

It is an arithmetic number, because the mean of its divisors is an integer number (26260173).

Almost surely, 2105040686 is an apocalyptic number.

105040686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105040686 is a wasteful number, since it uses less digits than its factorization.

105040686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17506786.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 105040686 is about 10248.9358471990. The cubic root of 105040686 is about 471.8303247970.

The spelling of 105040686 in words is "one hundred five million, forty thousand, six hundred eighty-six".

Divisors: 1 2 3 6 17506781 35013562 52520343 105040686