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206481800379 = 3195149997057
BaseRepresentation
bin1100000001001101000…
…1100011110010111011
3201201222001221021001010
43000103101203302323
511340333320103004
6234504553325003
720626545226131
oct3002321436273
9651861837033
10206481800379
117a628658818
1234026406763
131661816a20a
149dcaca9751
15558752ca89
hex3013463cbb

206481800379 has 16 divisors (see below), whose sum is σ = 275544320000. Its totient is φ = 137536963200.

The previous prime is 206481800351. The next prime is 206481800383. The reversal of 206481800379 is 973008184602.

It is not a de Polignac number, because 206481800379 - 216 = 206481734843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206481800279) 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, 29255619 + ... + 29262675.

It is an arithmetic number, because the mean of its divisors is an integer number (17221520000).

Almost surely, 2206481800379 is an apocalyptic number.

206481800379 is a deficient number, since it is larger than the sum of its proper divisors (69062519621).

206481800379 is a wasteful number, since it uses less digits than its factorization.

206481800379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14010.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 206481800379 in words is "two hundred six billion, four hundred eighty-one million, eight hundred thousand, three hundred seventy-nine".

Divisors: 1 3 1951 4999 5853 7057 14997 21171 9753049 13768207 29259147 35277943 41304621 105833829 68827266793 206481800379