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36124420 = 2251806221
BaseRepresentation
bin1000100111001…
…1011100000100
32111222022101111
42021303130010
533221440140
63330134404
7616024003
oct211633404
974868344
1036124420
11194338a2
1210121404
13763a7c7
144b24c3a
1532887ea
hex2273704

36124420 has 12 divisors (see below), whose sum is σ = 75861324. Its totient is φ = 14449760.

The previous prime is 36124411. The next prime is 36124423. The reversal of 36124420 is 2442163.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 31561924 = 2136^2 + 5618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36124391 and 36124400.

It is not an unprimeable number, because it can be changed into a prime (36124423) by changing a digit.

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, 903091 + ... + 903130.

It is an arithmetic number, because the mean of its divisors is an integer number (6321777).

Almost surely, 236124420 is an apocalyptic number.

It is an amenable number.

36124420 is an abundant number, since it is smaller than the sum of its proper divisors (39736904).

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

36124420 is a wasteful number, since it uses less digits than its factorization.

36124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806230 (or 1806228 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 36124420 is about 6010.3593902528. The cubic root of 36124420 is about 330.5726817491.

Adding to 36124420 its reverse (2442163), we get a palindrome (38566583).

The spelling of 36124420 in words is "thirty-six million, one hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1806221 3612442 7224884 9031105 18062210 36124420