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2000018387 = 3761218831
BaseRepresentation
bin111011100110101…
…1101101111010011
312011101101110110002
41313031131233103
513044001042022
6530243200215
7100363606253
oct16715355723
95141343402
102000018387
11936a5a464
1247997606b
1325b482843
1414d8a1963
15ba8b8092
hex7735dbd3

2000018387 has 8 divisors (see below), whose sum is σ = 2054641152. Its totient is φ = 1945425600.

The previous prime is 2000018353. The next prime is 2000018411. The reversal of 2000018387 is 7838100002.

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 2000018387 - 26 = 2000018323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000018327) 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, 222062 + ... + 230892.

It is an arithmetic number, because the mean of its divisors is an integer number (256830144).

Almost surely, 22000018387 is an apocalyptic number.

2000018387 is a deficient number, since it is larger than the sum of its proper divisors (54622765).

2000018387 is an equidigital number, since it uses as much as digits as its factorization.

2000018387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2000018387 is about 44721.5651224328. The cubic root of 2000018387 is about 1259.9249109111.

Adding to 2000018387 its reverse (7838100002), we get a palindrome (9838118389).

The spelling of 2000018387 in words is "two billion, eighteen thousand, three hundred eighty-seven".

Divisors: 1 37 6121 8831 226477 326747 54054551 2000018387