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19990483 = 291634229
BaseRepresentation
bin100110001000…
…0011111010011
31101121121210021
41030100133103
520104143413
61552244311
7331626202
oct114203723
941547707
1019990483
1110314167
126840697
1341abcb6
142925239
151b4d18d
hex13107d3

19990483 has 8 divisors (see below), whose sum is σ = 20811600. Its totient is φ = 19178208.

The previous prime is 19990459. The next prime is 19990499. The reversal of 19990483 is 38409991.

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 19990483 - 29 = 19989971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19990403) 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, 2613 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (2601450).

Almost surely, 219990483 is an apocalyptic number.

19990483 is a deficient number, since it is larger than the sum of its proper divisors (821117).

19990483 is a wasteful number, since it uses less digits than its factorization.

19990483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 19990483 is about 4471.0717954423. The cubic root of 19990483 is about 271.3986996410.

The spelling of 19990483 in words is "nineteen million, nine hundred ninety thousand, four hundred eighty-three".

Divisors: 1 29 163 4229 4727 122641 689327 19990483