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490887825 = 3526545171
BaseRepresentation
bin11101010000100…
…101101010010001
31021012200200111120
4131100211222101
52001131402300
6120413232453
715110322561
oct3520455221
91235620446
10490887825
1123210331a
12118492729
137a91468c
14492a2da1
152d1683a0
hex1d425a91

490887825 has 12 divisors (see below), whose sum is σ = 811601328. Its totient is φ = 261806800.

The previous prime is 490887811. The next prime is 490887829. The reversal of 490887825 is 528788094.

It is a happy number.

It is not a de Polignac number, because 490887825 - 28 = 490887569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490887829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3272511 + ... + 3272660.

It is an arithmetic number, because the mean of its divisors is an integer number (67633444).

Almost surely, 2490887825 is an apocalyptic number.

It is an amenable number.

490887825 is a deficient number, since it is larger than the sum of its proper divisors (320713503).

490887825 is a wasteful number, since it uses less digits than its factorization.

490887825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545184 (or 6545179 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 490887825 is about 22155.9884681320. The cubic root of 490887825 is about 788.8493771309.

The spelling of 490887825 in words is "four hundred ninety million, eight hundred eighty-seven thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 6545171 19635513 32725855 98177565 163629275 490887825