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1980463 = 83107223
BaseRepresentation
bin111100011100000101111
310201121200111
413203200233
51001333323
6110240451
722555642
oct7434057
93647614
101980463
111132a51
127b6127
13544594
14397a59
15291c0d
hex1e382f

1980463 has 8 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 1929624.

The previous prime is 1980443. The next prime is 1980469. The reversal of 1980463 is 3640891.

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 1980463 - 25 = 1980431 is a prime.

It is a super-3 number, since 3×19804633 = 23303516127153338541, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980469) 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, 8770 + ... + 8992.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

21980463 is an apocalyptic number.

1980463 is a deficient number, since it is larger than the sum of its proper divisors (51665).

1980463 is a wasteful number, since it uses less digits than its factorization.

1980463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1980463 is about 1407.2892382165. The cubic root of 1980463 is about 125.5805105533.

The spelling of 1980463 in words is "one million, nine hundred eighty thousand, four hundred sixty-three".

Divisors: 1 83 107 223 8881 18509 23861 1980463