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15255338093 = 17252786637
BaseRepresentation
bin11100011010100100…
…11111110001101101
31110101011121110200222
432031102133301231
5222220331304333
611001434501125
71050020143232
oct161522376155
943334543628
1015255338093
116519271336
122b58b947a5
13159170a398
14a4a0cd789
155e4450298
hex38d49fc6d

15255338093 has 6 divisors (see below), whose sum is σ = 16205497866. Its totient is φ = 14357964992.

The previous prime is 15255338083. The next prime is 15255338099. The reversal of 15255338093 is 39083355251.

It can be written as a sum of positive squares in 3 ways, for example, as 11423975689 + 3831362404 = 106883^2 + 61898^2 .

It is not a de Polignac number, because 15255338093 - 214 = 15255321709 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 (15255338099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26393030 + ... + 26393607.

It is an arithmetic number, because the mean of its divisors is an integer number (2700916311).

Almost surely, 215255338093 is an apocalyptic number.

It is an amenable number.

15255338093 is a deficient number, since it is larger than the sum of its proper divisors (950159773).

15255338093 is an equidigital number, since it uses as much as digits as its factorization.

15255338093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52786671 (or 52786654 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 15255338093 in words is "fifteen billion, two hundred fifty-five million, three hundred thirty-eight thousand, ninety-three".

Divisors: 1 17 289 52786637 897372829 15255338093