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1800014489 = 71319780379
BaseRepresentation
bin110101101001010…
…0000101010011001
311122110001012200022
41223102200222121
512141300430424
6454340320225
762414604440
oct15322405231
94573035608
101800014489
11844074589
124229a3075
13228bc6840
141310bbd57
15a805c95e
hex6b4a0a99

1800014489 has 8 divisors (see below), whose sum is σ = 2215402560. Its totient is φ = 1424187216.

The previous prime is 1800014471. The next prime is 1800014527. The reversal of 1800014489 is 9844100081.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1800014489 is a prime.

It is a super-2 number, since 2×18000144892 = 6480104321219862242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1800014459) 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, 9890099 + ... + 9890280.

It is an arithmetic number, because the mean of its divisors is an integer number (276925320).

Almost surely, 21800014489 is an apocalyptic number.

It is an amenable number.

1800014489 is a deficient number, since it is larger than the sum of its proper divisors (415388071).

1800014489 is a wasteful number, since it uses less digits than its factorization.

1800014489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19780399.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1800014489 is about 42426.5776253518. The cubic root of 1800014489 is about 1216.4436629957.

The spelling of 1800014489 in words is "one billion, eight hundred million, fourteen thousand, four hundred eighty-nine".

Divisors: 1 7 13 91 19780379 138462653 257144927 1800014489