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9994752159 = 371471323549
BaseRepresentation
bin10010100111011101…
…11101000010011111
3221210112220000102220
421103232331002133
5130432124032114
64331434120423
7502451664060
oct112356750237
927715800386
109994752159
114269860257
121b2b280113
13c338a0942
146ab598567
153d76c30a9
hex253bbd09f

9994752159 has 16 divisors (see below), whose sum is σ = 15240499200. Its totient is φ = 5707386720.

The previous prime is 9994752121. The next prime is 9994752179. The reversal of 9994752159 is 9512574999.

It is not a de Polignac number, because 9994752159 - 28 = 9994751903 is a prime.

It is a super-2 number, since 2×99947521592 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994752109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130884 + ... + 192665.

It is an arithmetic number, because the mean of its divisors is an integer number (952531200).

Almost surely, 29994752159 is an apocalyptic number.

9994752159 is a deficient number, since it is larger than the sum of its proper divisors (5245747041).

9994752159 is a wasteful number, since it uses less digits than its factorization.

9994752159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325030.

The product of its digits is 9185400, while the sum is 60.

The square root of 9994752159 is about 99973.7573516170. The cubic root of 9994752159 is about 2154.0577530641.

The spelling of 9994752159 in words is "nine billion, nine hundred ninety-four million, seven hundred fifty-two thousand, one hundred fifty-nine".

Divisors: 1 3 7 21 1471 4413 10297 30891 323549 970647 2264843 6794529 475940579 1427821737 3331584053 9994752159