Search a number
-
+
105286880 = 255658043
BaseRepresentation
bin1100100011010…
…00110011100000
321100010010110002
412101220303200
5203423140010
614240355132
72415631556
oct621506340
9240103402
10105286880
1154482656
122b315aa8
1318a7503a
14dda9bd6
15939b1a5
hex6468ce0

105286880 has 24 divisors (see below), whose sum is σ = 248740632. Its totient is φ = 42114688.

The previous prime is 105286877. The next prime is 105286891. The reversal of 105286880 is 88682501.

It is a super-2 number, since 2×1052868802 = 22170654200268800, which contains 22 as substring.

It is a congruent 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, 328862 + ... + 329181.

It is an arithmetic number, because the mean of its divisors is an integer number (10364193).

Almost surely, 2105286880 is an apocalyptic number.

105286880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105286880 is an abundant number, since it is smaller than the sum of its proper divisors (143453752).

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

105286880 is an equidigital number, since it uses as much as digits as its factorization.

105286880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658058 (or 658050 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 105286880 is about 10260.9395281329. The cubic root of 105286880 is about 472.1986619439.

The spelling of 105286880 in words is "one hundred five million, two hundred eighty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 658043 1316086 2632172 3290215 5264344 6580430 10528688 13160860 21057376 26321720 52643440 105286880