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2011184740 = 225100559237
BaseRepresentation
bin111011111100000…
…0011111001100100
312012011101202210201
41313320003321210
513104330402430
6531322400244
7100560534235
oct16770037144
95164352721
102011184740
11942296954
12481660084
13260892256
1415116b08c
15bb8718ca
hex77e03e64

2011184740 has 12 divisors (see below), whose sum is σ = 4223487996. Its totient is φ = 804473888.

The previous prime is 2011184729. The next prime is 2011184783. The reversal of 2011184740 is 474811102.

It can be written as a sum of positive squares in 2 ways, for example, as 1348945984 + 662238756 = 36728^2 + 25734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011184699 and 2011184708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50279599 + ... + 50279638.

It is an arithmetic number, because the mean of its divisors is an integer number (351957333).

Almost surely, 22011184740 is an apocalyptic number.

2011184740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011184740 is an abundant number, since it is smaller than the sum of its proper divisors (2212303256).

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

2011184740 is a wasteful number, since it uses less digits than its factorization.

2011184740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100559246 (or 100559244 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2011184740 is about 44846.2344015638. The cubic root of 2011184740 is about 1262.2653335041.

Adding to 2011184740 its reverse (474811102), we get a palindrome (2485995842).

The spelling of 2011184740 in words is "two billion, eleven million, one hundred eighty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 100559237 201118474 402236948 502796185 1005592370 2011184740