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489621223 = 71343179
BaseRepresentation
bin11101001011110…
…000011011100111
31021010022100001101
4131023300123213
52000320334343
6120330140531
715063466060
oct3513603347
91233270041
10489621223
11231418743
12117b81747
137a590000
1449053567
152ceb7e4d
hex1d2f06e7

489621223 has 40 divisors (see below), whose sum is σ = 633671680. Its totient is φ = 370150560.

The previous prime is 489621191. The next prime is 489621229. The reversal of 489621223 is 322126984.

It is a happy number.

It is not a de Polignac number, because 489621223 - 25 = 489621191 is a prime.

It is a super-3 number, since 3×4896212233 (a number of 27 digits) 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 (489621229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6197698 + ... + 6197776.

It is an arithmetic number, because the mean of its divisors is an integer number (15841792).

Almost surely, 2489621223 is an apocalyptic number.

489621223 is a deficient number, since it is larger than the sum of its proper divisors (144050457).

489621223 is an frugal number, since it uses more digits than its factorization.

489621223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 130 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 489621223 is about 22127.3862667962. The cubic root of 489621223 is about 788.1703226141.

The spelling of 489621223 in words is "four hundred eighty-nine million, six hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 7 13 31 79 91 169 217 403 553 1027 1183 2197 2449 2821 5239 7189 13351 15379 17143 28561 31837 36673 68107 93457 173563 199927 222859 413881 476749 885391 1214941 2256319 2897167 5380453 6197737 15794233 37663171 69945889 489621223