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9797130871 = 1129472832309
BaseRepresentation
bin10010001111111010…
…00101101001110111
3221021210000210222221
421013331011221313
5130031031141441
64300054303211
7464532144523
oct110775055167
927253023887
109797130871
114178252480
121a95057b07
13c0196a278
1468d234d83
153c51888d1
hex247f45a77

9797130871 has 32 divisors (see below), whose sum is σ = 11336371200. Its totient is φ = 8383025280.

The previous prime is 9797130841. The next prime is 9797130919. The reversal of 9797130871 is 1780317979.

It is not a de Polignac number, because 9797130871 - 25 = 9797130839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9797130841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4241865 + ... + 4244173.

It is an arithmetic number, because the mean of its divisors is an integer number (354261600).

Almost surely, 29797130871 is an apocalyptic number.

9797130871 is a deficient number, since it is larger than the sum of its proper divisors (1539240329).

9797130871 is a wasteful number, since it uses less digits than its factorization.

9797130871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679.

The product of its (nonzero) digits is 666792, while the sum is 52.

The square root of 9797130871 is about 98980.4570155139. The cubic root of 9797130871 is about 2139.7661018273.

The spelling of 9797130871 in words is "nine billion, seven hundred ninety-seven million, one hundred thirty thousand, eight hundred seventy-one".

Divisors: 1 11 29 47 283 319 517 1363 2309 3113 8207 13301 14993 25399 66961 90277 108523 146311 385729 653447 736571 1193753 3147167 4243019 7187917 18949963 30712009 34618837 208449593 337832099 890648261 9797130871