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320185680013 = 3179843129361
BaseRepresentation
bin1001010100011001000…
…11011100000010001101
31010121110021211211002101
410222030203130002031
520221220013230023
6403031414155101
732063333242363
oct4521443340215
91117407754071
10320185680013
11113876518481
1252079652a91
1324268b18874
14116d5d5d633
1584de8a61ad
hex4a8c8dc08d

320185680013 has 8 divisors (see below), whose sum is σ = 330520944896. Its totient is φ = 309850833600.

The previous prime is 320185680011. The next prime is 320185680041. The reversal of 320185680013 is 310086581023.

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 320185680013 - 21 = 320185680011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320185680011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2410453 + ... + 2539813.

It is an arithmetic number, because the mean of its divisors is an integer number (41315118112).

Almost surely, 2320185680013 is an apocalyptic number.

It is an amenable number.

320185680013 is a deficient number, since it is larger than the sum of its proper divisors (10335264883).

320185680013 is a wasteful number, since it uses less digits than its factorization.

320185680013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209235.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 320185680013 in words is "three hundred twenty billion, one hundred eighty-five million, six hundred eighty thousand, thirteen".

Divisors: 1 31 79843 129361 2475133 4010191 10328570323 320185680013