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1992141008 = 241113870691
BaseRepresentation
bin111011010111101…
…1010100011010000
312010211120020201022
41312233122203100
513034442003013
6525402255012
7100236630164
oct16657324320
95124506638
101992141008
1193256a030
124771b7468
13259955180
1414c810ca4
15b9d5e008
hex76bda8d0

1992141008 has 40 divisors (see below), whose sum is σ = 4534563936. Its totient is φ = 835862400.

The previous prime is 1992141001. The next prime is 1992141029. The reversal of 1992141008 is 8001412991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992141001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433058 + ... + 437633.

Almost surely, 21992141008 is an apocalyptic number.

It is an amenable number.

1992141008 is an abundant number, since it is smaller than the sum of its proper divisors (2542422928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992141008 is a wasteful number, since it uses less digits than its factorization.

1992141008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870723 (or 870717 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1992141008 is about 44633.4068607809. The cubic root of 1992141008 is about 1258.2685986590.

Adding to 1992141008 its reverse (8001412991), we get a palindrome (9993553999).

The spelling of 1992141008 in words is "one billion, nine hundred ninety-two million, one hundred forty-one thousand, eight".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 104 143 176 208 286 572 1144 2288 870691 1741382 3482764 6965528 9577601 11318983 13931056 19155202 22637966 38310404 45275932 76620808 90551864 124508813 153241616 181103728 249017626 498035252 996070504 1992141008