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19460466085 = 54219244877
BaseRepresentation
bin10010000111111011…
…110010010110100101
31212020020022002212011
4102013323302112211
5304323334403320
612535013154221
71256151142504
oct220773622645
955206262764
1019460466085
118286a20225
12393132b971
131ab19901b8
14d2879c83b
1578d6e405a
hex487ef25a5

19460466085 has 8 divisors (see below), whose sum is σ = 23408031096. Its totient is φ = 15531391680.

The previous prime is 19460466073. The next prime is 19460466127. The reversal of 19460466085 is 58066406491.

It can be written as a sum of positive squares in 4 ways, for example, as 29778849 + 19430687236 = 5457^2 + 139394^2 .

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

It is not a de Polignac number, because 19460466085 - 27 = 19460465957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4620334 + ... + 4624543.

It is an arithmetic number, because the mean of its divisors is an integer number (2926003887).

Almost surely, 219460466085 is an apocalyptic number.

It is an amenable number.

19460466085 is a deficient number, since it is larger than the sum of its proper divisors (3947565011).

19460466085 is an equidigital number, since it uses as much as digits as its factorization.

19460466085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245303.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 19460466085 in words is "nineteen billion, four hundred sixty million, four hundred sixty-six thousand, eighty-five".

Divisors: 1 5 421 2105 9244877 46224385 3892093217 19460466085