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105047500 = 225442019
BaseRepresentation
bin1100100001011…
…10010111001100
321022122222002011
412100232113030
5203343010000
614231311004
72413613635
oct620562714
9238588064
10105047500
1154329818
122b21b464
13189c00ac
14dd4688c
1593502ba
hex642e5cc

105047500 has 30 divisors (see below), whose sum is σ = 229723340. Its totient is φ = 42018000.

The previous prime is 105047497. The next prime is 105047507. The reversal of 105047500 is 5740501.

It is a super-2 number, since 2×1050475002 = 22069954512500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105047507) 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 9 ways as a sum of consecutive naturals, for example, 18510 + ... + 23509.

Almost surely, 2105047500 is an apocalyptic number.

105047500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105047500 is an abundant number, since it is smaller than the sum of its proper divisors (124675840).

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

105047500 is an equidigital number, since it uses as much as digits as its factorization.

105047500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42043 (or 42026 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 105047500 is about 10249.2682665642. The cubic root of 105047500 is about 471.8405271368.

The spelling of 105047500 in words is "one hundred five million, forty-seven thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 42019 84038 168076 210095 420190 840380 1050475 2100950 4201900 5252375 10504750 21009500 26261875 52523750 105047500