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9983381 = 71140611
BaseRepresentation
bin100110000101…
…010110010101
3200210012121212
4212011112111
510023432011
6553551205
7150600032
oct46052625
920705555
109983381
1156a9731
123415505
1320b7135
14147c389
15d2308b
hex985595

9983381 has 4 divisors (see below), whose sum is σ = 10124064. Its totient is φ = 9842700.

The previous prime is 9983371. The next prime is 9983383. The reversal of 9983381 is 1833899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9983381 - 214 = 9966997 is a prime.

It is a super-2 number, since 2×99833812 = 199335792382322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9983383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70235 + ... + 70376.

It is an arithmetic number, because the mean of its divisors is an integer number (2531016).

Almost surely, 29983381 is an apocalyptic number.

It is an amenable number.

9983381 is a deficient number, since it is larger than the sum of its proper divisors (140683).

9983381 is a wasteful number, since it uses less digits than its factorization.

9983381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140682.

The product of its digits is 46656, while the sum is 41.

The square root of 9983381 is about 3159.6488728971. The cubic root of 9983381 is about 215.3240543266.

The spelling of 9983381 in words is "nine million, nine hundred eighty-three thousand, three hundred eighty-one".

Divisors: 1 71 140611 9983381