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489621741 = 3723315321
BaseRepresentation
bin11101001011110…
…000100011101101
31021010022100202120
4131023300203231
52000320343431
6120330143153
715063500430
oct3513604355
91233270676
10489621741
11231419074
12117b81ab9
137a59030b
1449053817
152ceb8196
hex1d2f08ed

489621741 has 8 divisors (see below), whose sum is σ = 746090304. Its totient is φ = 279783840.

The previous prime is 489621683. The next prime is 489621749. The reversal of 489621741 is 147126984.

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

It is not a de Polignac number, because 489621741 - 29 = 489621229 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 489621693 and 489621702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489621749) 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, 11657640 + ... + 11657681.

It is an arithmetic number, because the mean of its divisors is an integer number (93261288).

Almost surely, 2489621741 is an apocalyptic number.

It is an amenable number.

489621741 is a deficient number, since it is larger than the sum of its proper divisors (256468563).

489621741 is a wasteful number, since it uses less digits than its factorization.

489621741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23315331.

The product of its digits is 96768, while the sum is 42.

The square root of 489621741 is about 22127.3979717453. The cubic root of 489621741 is about 788.1706005651.

The spelling of 489621741 in words is "four hundred eighty-nine million, six hundred twenty-one thousand, seven hundred forty-one".

Divisors: 1 3 7 21 23315321 69945963 163207247 489621741