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9915082073 = 131574857953
BaseRepresentation
bin10010011101111110…
…00010010101011001
3221120222222100121222
421032333002111121
5130301230111243
64315510341425
7500463543551
oct111677022531
927528870558
109915082073
114228894a06
121b0865a875
13c20227790
146a0b7a161
153d06d7168
hex24efc2559

9915082073 has 8 divisors (see below), whose sum is σ = 10745794248. Its totient is φ = 9094086144.

The previous prime is 9915082043. The next prime is 9915082087. The reversal of 9915082073 is 3702805199.

It can be written as a sum of positive squares in 4 ways, for example, as 20403289 + 9894678784 = 4517^2 + 99472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9915082073 - 216 = 9915016537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9915082043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2426936 + ... + 2431017.

It is an arithmetic number, because the mean of its divisors is an integer number (1343224281).

Almost surely, 29915082073 is an apocalyptic number.

It is an amenable number.

9915082073 is a deficient number, since it is larger than the sum of its proper divisors (830712175).

9915082073 is a wasteful number, since it uses less digits than its factorization.

9915082073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858123.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 9915082073 is about 99574.5051356019. The cubic root of 9915082073 is about 2148.3190086013.

The spelling of 9915082073 in words is "nine billion, nine hundred fifteen million, eighty-two thousand, seventy-three".

Divisors: 1 13 157 2041 4857953 63153389 762698621 9915082073