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20150124323 = 72411227027
BaseRepresentation
bin10010110001000010…
…100111111100100011
31221000022000101002212
4102301002213330203
5312231412434243
613131251032335
71312224142100
oct226102477443
957008011085
1020150124323
11860024670a
123aa429b6ab
131b9181b2b4
14d92203aa7
157ce022318
hex4b10a7f23

20150124323 has 6 divisors (see below), whose sum is σ = 23439940596. Its totient is φ = 17271535092.

The previous prime is 20150124307. The next prime is 20150124347. The reversal of 20150124323 is 32342105102.

It is not a de Polignac number, because 20150124323 - 24 = 20150124307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20150124383) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 205613465 + ... + 205613562.

It is an arithmetic number, because the mean of its divisors is an integer number (3906656766).

Almost surely, 220150124323 is an apocalyptic number.

20150124323 is a deficient number, since it is larger than the sum of its proper divisors (3289816273).

20150124323 is an equidigital number, since it uses as much as digits as its factorization.

20150124323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411227041 (or 411227034 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20150124323 its reverse (32342105102), we get a palindrome (52492229425).

The spelling of 20150124323 in words is "twenty billion, one hundred fifty million, one hundred twenty-four thousand, three hundred twenty-three".

Divisors: 1 7 49 411227027 2878589189 20150124323