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490441903 = 72310927947
BaseRepresentation
bin11101001110111…
…000110010101111
31021011212000210221
4131032320302233
52001023120103
6120355512211
715103454530
oct3516706257
91234760727
10490441903
11231929296
121182b8667
137a7b9713
14491c8687
152d0cb1bd
hex1d3b8caf

490441903 has 16 divisors (see below), whose sum is σ = 590261760. Its totient is φ = 398398176.

The previous prime is 490441879. The next prime is 490441907. The reversal of 490441903 is 309144094.

It is a cyclic number.

It is not a de Polignac number, because 490441903 - 221 = 488344751 is a prime.

It is a super-2 number, since 2×4904419032 = 481066520436522818, 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 (490441907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3576 + ... + 31522.

It is an arithmetic number, because the mean of its divisors is an integer number (36891360).

Almost surely, 2490441903 is an apocalyptic number.

490441903 is a deficient number, since it is larger than the sum of its proper divisors (99819857).

490441903 is a wasteful number, since it uses less digits than its factorization.

490441903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28086.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 490441903 is about 22145.9229430611. The cubic root of 490441903 is about 788.6104414432.

Adding to 490441903 its reverse (309144094), we get a palindrome (799585997).

The spelling of 490441903 in words is "four hundred ninety million, four hundred forty-one thousand, nine hundred three".

Divisors: 1 7 23 109 161 763 2507 17549 27947 195629 642781 3046223 4499467 21323561 70063129 490441903