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490581495 = 335171811181
BaseRepresentation
bin11101001111011…
…010110111110111
31021012010010022000
4131033122313313
52001042101440
6120402510343
715104605515
oct3517326767
91235103260
10490581495
11231a14158
121183653b3
137a838111
14492234b5
152d107730
hex1d3dadf7

490581495 has 64 divisors (see below), whose sum is σ = 929335680. Its totient is φ = 244684800.

The previous prime is 490581493. The next prime is 490581517. The reversal of 490581495 is 594185094.

It is not a de Polignac number, because 490581495 - 21 = 490581493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 490581495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490581493) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414805 + ... + 415985.

It is an arithmetic number, because the mean of its divisors is an integer number (14520870).

Almost surely, 2490581495 is an apocalyptic number.

490581495 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

490581495 is a deficient number, since it is larger than the sum of its proper divisors (438754185).

490581495 is a wasteful number, since it uses less digits than its factorization.

490581495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 490581495 is about 22149.0743598914. The cubic root of 490581495 is about 788.6852537472.

The spelling of 490581495 in words is "four hundred ninety million, five hundred eighty-one thousand, four hundred ninety-five".

Divisors: 1 3 5 9 15 17 27 45 51 85 135 153 181 255 459 543 765 905 1181 1629 2295 2715 3077 3543 4887 5905 8145 9231 10629 15385 17715 20077 24435 27693 31887 46155 53145 60231 83079 100385 138465 159435 180693 213761 301155 415395 542079 641283 903465 1068805 1923849 2710395 3206415 3633937 5771547 9619245 10901811 18169685 28857735 32705433 54509055 98116299 163527165 490581495