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168908347361 = 13196111210483
BaseRepresentation
bin1001110101001110111…
…0001101011111100001
3121010222111212002020002
42131103232031133201
510231411014103421
6205332340025345
715126464156255
oct2352356153741
9533874762202
10168908347361
11656a73a4406
122889b092255
1312c0aa39990
148264aac265
1545d8ab2b0b
hex2753b8d7e1

168908347361 has 16 divisors (see below), whose sum is σ = 194614002240. Its totient is φ = 145287846720.

The previous prime is 168908347357. The next prime is 168908347367. The reversal of 168908347361 is 163743809861.

It is a cyclic number.

It is not a de Polignac number, because 168908347361 - 22 = 168908347357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168908347297 and 168908347306.

It is not an unprimeable number, because it can be changed into a prime (168908347367) 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, 5590175 + ... + 5620308.

It is an arithmetic number, because the mean of its divisors is an integer number (12163375140).

Almost surely, 2168908347361 is an apocalyptic number.

It is an amenable number.

168908347361 is a deficient number, since it is larger than the sum of its proper divisors (25705654879).

168908347361 is a wasteful number, since it uses less digits than its factorization.

168908347361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210576.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 168908347361 in words is "one hundred sixty-eight billion, nine hundred eight million, three hundred forty-seven thousand, three hundred sixty-one".

Divisors: 1 13 19 61 247 793 1159 15067 11210483 145736279 212999177 683839463 2768989301 8889913019 12992949797 168908347361