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489038869 = 11101440179
BaseRepresentation
bin11101001001100…
…010010000010101
31021002012202012201
4131021202100111
52000143220434
6120305444501
715055522204
oct3511422025
91232182181
10489038869
11231060160
12117940731
137a417c17
1448d4123b
152ce00614
hex1d262415

489038869 has 8 divisors (see below), whose sum is σ = 538780320. Its totient is φ = 440178000.

The previous prime is 489038839. The next prime is 489038873. The reversal of 489038869 is 968830984.

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-489038869 is a prime.

It is a super-2 number, since 2×4890388692 = 478318030785598322, which contains 22 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 (489038819) 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, 218979 + ... + 221200.

It is an arithmetic number, because the mean of its divisors is an integer number (67347540).

Almost surely, 2489038869 is an apocalyptic number.

It is an amenable number.

489038869 is a deficient number, since it is larger than the sum of its proper divisors (49741451).

489038869 is a wasteful number, since it uses less digits than its factorization.

489038869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440291.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 489038869 is about 22114.2232285016. The cubic root of 489038869 is about 787.8577161786.

The spelling of 489038869 in words is "four hundred eighty-nine million, thirty-eight thousand, eight hundred sixty-nine".

Divisors: 1 11 101 1111 440179 4841969 44458079 489038869