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1983130 = 25198313
BaseRepresentation
bin111100100001010011010
310201202100021
413210022122
51001430010
6110301054
722566502
oct7441232
93652307
101983130
111134a56
127b778a
13545866
14398a02
152928da
hex1e429a

1983130 has 8 divisors (see below), whose sum is σ = 3569652. Its totient is φ = 793248.

The previous prime is 1983109. The next prime is 1983143. The reversal of 1983130 is 313891.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 3481 = 1407^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1983095 and 1983104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99147 + ... + 99166.

21983130 is an apocalyptic number.

1983130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1983130 is a deficient number, since it is larger than the sum of its proper divisors (1586522).

1983130 is a wasteful number, since it uses less digits than its factorization.

1983130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198320.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1983130 is about 1408.2364858219. The cubic root of 1983130 is about 125.6368564670.

The spelling of 1983130 in words is "one million, nine hundred eighty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 198313 396626 991565 1983130