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9999305351 = 719157478871
BaseRepresentation
bin10010101000000000…
…10100101010000111
3221210212110100020122
421110000110222013
5130434310232401
64332115452155
7502535456510
oct112400245207
927725410218
109999305351
114271390122
121b308b705b
13c34806239
146ac021a07
153d7cc221b
hex254014a87

9999305351 has 16 divisors (see below), whose sum is σ = 12105884160. Its totient is φ = 8068001760.

The previous prime is 9999305291. The next prime is 9999305363. The reversal of 9999305351 is 1535039999.

It is not a de Polignac number, because 9999305351 - 210 = 9999304327 is a prime.

It is a super-2 number, since 2×99993053512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9999305293 and 9999305302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999305051) 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, 218555 + ... + 260316.

It is an arithmetic number, because the mean of its divisors is an integer number (756617760).

Almost surely, 29999305351 is an apocalyptic number.

9999305351 is a deficient number, since it is larger than the sum of its proper divisors (2106578809).

9999305351 is a wasteful number, since it uses less digits than its factorization.

9999305351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479054.

The product of its (nonzero) digits is 1476225, while the sum is 53.

The square root of 9999305351 is about 99996.5266946808. The cubic root of 9999305351 is about 2154.3848030133.

The spelling of 9999305351 in words is "nine billion, nine hundred ninety-nine million, three hundred five thousand, three hundred fifty-one".

Divisors: 1 7 19 133 157 1099 2983 20881 478871 3352097 9098549 63689843 75182747 526279229 1428472193 9999305351