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538911079 = 7194099907
BaseRepresentation
bin100000000111110…
…010000101100111
31101120001112000121
4200013302011213
52100430123304
6125250422411
716232445220
oct4007620547
91346045017
10538911079
11257223963
12130591a07
138785a0c5
1451804247
15324a2554
hex201f2167

538911079 has 16 divisors (see below), whose sum is σ = 649964800. Its totient is φ = 436497984.

The previous prime is 538911077. The next prime is 538911119. The reversal of 538911079 is 970119835.

It is a cyclic number.

It is not a de Polignac number, because 538911079 - 21 = 538911077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538911077) 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 15 ways as a sum of consecutive naturals, for example, 49444 + ... + 59350.

It is an arithmetic number, because the mean of its divisors is an integer number (40622800).

Almost surely, 2538911079 is an apocalyptic number.

538911079 is a deficient number, since it is larger than the sum of its proper divisors (111053721).

538911079 is a wasteful number, since it uses less digits than its factorization.

538911079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10342.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 538911079 is about 23214.4584041928. The cubic root of 538911079 is about 813.7775487978. Note that the first 3 decimals are identical.

The spelling of 538911079 in words is "five hundred thirty-eight million, nine hundred eleven thousand, seventy-nine".

Divisors: 1 7 19 133 409 2863 7771 9907 54397 69349 188233 1317631 4051963 28363741 76987297 538911079