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9812434697 = 1317361312289
BaseRepresentation
bin10010010001101110…
…11101111100001001
3221022211211022220022
421020313131330021
5130043440402242
64301402310225
7465106214222
oct111067357411
927284738808
109812434697
11418595546a
121a9a1b8375
13c04b97ca0
1469129a249
153c66ad0d2
hex248dddf09

9812434697 has 16 divisors (see below), whose sum is σ = 11192847120. Its totient is φ = 8521777152.

The previous prime is 9812434673. The next prime is 9812434711. The reversal of 9812434697 is 7964342189.

It can be written as a sum of positive squares in 8 ways, for example, as 664659961 + 9147774736 = 25781^2 + 95644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9812434697 is a prime.

It is a super-4 number, since 4×98124346974 (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (9812434637) 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, 792329 + ... + 804617.

It is an arithmetic number, because the mean of its divisors is an integer number (699552945).

Almost surely, 29812434697 is an apocalyptic number.

It is an amenable number.

9812434697 is a deficient number, since it is larger than the sum of its proper divisors (1380412423).

9812434697 is a wasteful number, since it uses less digits than its factorization.

9812434697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932.

The product of its digits is 2612736, while the sum is 53.

The square root of 9812434697 is about 99057.7341604380. The cubic root of 9812434697 is about 2140.8796785965.

The spelling of 9812434697 in words is "nine billion, eight hundred twelve million, four hundred thirty-four thousand, six hundred ninety-seven".

Divisors: 1 13 17 221 3613 12289 46969 61421 159757 208913 798473 2715869 44400157 577202041 754802669 9812434697