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168681300847 = 6119181144167
BaseRepresentation
bin1001110100011000110…
…0000110001101101111
3121010101200121220221221
42131012030012031233
510230424403111342
6205254025404211
715121036254133
oct2350614061557
9533350556857
10168681300847
11655a0218a64
1228837039667
1312ba29a2b27
1482428893c3
1545c3bb4a67
hex274630636f

168681300847 has 8 divisors (see below), whose sum is σ = 171456695712. Its totient is φ = 165906232800.

The previous prime is 168681300839. The next prime is 168681300863. The reversal of 168681300847 is 748003186861.

168681300847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168681300847 - 23 = 168681300839 is a prime.

It is a super-2 number, since 2×1686813008472 (a number of 23 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 = 168681300794 and 168681300803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168681300817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097958 + ... + 1242124.

It is an arithmetic number, because the mean of its divisors is an integer number (21432086964).

Almost surely, 2168681300847 is an apocalyptic number.

168681300847 is a deficient number, since it is larger than the sum of its proper divisors (2775394865).

168681300847 is a wasteful number, since it uses less digits than its factorization.

168681300847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163409.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 168681300847 in words is "one hundred sixty-eight billion, six hundred eighty-one million, three hundred thousand, eight hundred forty-seven".

Divisors: 1 61 19181 144167 1170041 8794187 2765267227 168681300847