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490519431 = 3254502159
BaseRepresentation
bin11101001111001…
…011101110000111
31021011222222011100
4131033023232013
52001033110211
6120401311143
715104226543
oct3517135607
91234888140
10490519431
11231981566
121183354b3
137a815aac
1449208a23
152d0e4156
hex1d3cbb87

490519431 has 6 divisors (see below), whose sum is σ = 708528080. Its totient is φ = 327012948.

The previous prime is 490519391. The next prime is 490519433. The reversal of 490519431 is 134915094.

It is a happy number.

490519431 is a `hidden beast` number, since 490 + 51 + 94 + 31 = 666.

It is not a de Polignac number, because 490519431 - 222 = 486325127 is a prime.

It is a super-2 number, since 2×4905194312 = 481218624377127522, 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 (490519433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27251071 + ... + 27251088.

Almost surely, 2490519431 is an apocalyptic number.

490519431 is a deficient number, since it is larger than the sum of its proper divisors (218008649).

490519431 is a wasteful number, since it uses less digits than its factorization.

490519431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54502165 (or 54502162 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 490519431 is about 22147.6732637991. The cubic root of 490519431 is about 788.6519932006.

It can be divided in two parts, 4905 and 19431, that added together give a square (24336 = 1562).

The spelling of 490519431 in words is "four hundred ninety million, five hundred nineteen thousand, four hundred thirty-one".

Divisors: 1 3 9 54502159 163506477 490519431