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1982012006 = 2131492771847
BaseRepresentation
bin111011000100011…
…0001101001100110
312010010111122100002
41312020301221212
513024343341011
6524401221302
7100054552442
oct16610615146
95103448302
101982012006
11927880a57
12473931832
13257819990
1414b335822
15b900cc3b
hex76231a66

1982012006 has 32 divisors (see below), whose sum is σ = 3236587200. Its totient is φ = 904864896.

The previous prime is 1982012003. The next prime is 1982012077. The reversal of 1982012006 is 6002102891.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982012003) 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, 1072175 + ... + 1074021.

It is an arithmetic number, because the mean of its divisors is an integer number (101143350).

Almost surely, 21982012006 is an apocalyptic number.

1982012006 is a deficient number, since it is larger than the sum of its proper divisors (1254575194).

1982012006 is a wasteful number, since it uses less digits than its factorization.

1982012006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1982012006 is about 44519.7934182089. The cubic root of 1982012006 is about 1256.1324267547.

Adding to 1982012006 its reverse (6002102891), we get a palindrome (7984114897).

The spelling of 1982012006 in words is "one billion, nine hundred eighty-two million, twelve thousand, six".

Divisors: 1 2 13 26 149 277 298 554 1847 1937 3601 3694 3874 7202 24011 41273 48022 82546 275203 511619 536549 550406 1023238 1073098 3577639 6651047 7155278 13302094 76231231 152462462 991006003 1982012006