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490240407 = 31753672707
BaseRepresentation
bin11101001110000…
…111100110010111
31021011110210102010
4131032013212113
52001000143112
6120351315303
715101655216
oct3516074627
91234423363
10490240407
11231800968
1211821bb33
137a748aa7
144917507d
152d08b63c
hex1d387997

490240407 has 32 divisors (see below), whose sum is σ = 715951872. Its totient is φ = 297183744.

The previous prime is 490240397. The next prime is 490240411. The reversal of 490240407 is 704042094.

It is not a de Polignac number, because 490240407 - 28 = 490240151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490240427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179748 + ... + 182454.

It is an arithmetic number, because the mean of its divisors is an integer number (22373496).

Almost surely, 2490240407 is an apocalyptic number.

490240407 is a deficient number, since it is larger than the sum of its proper divisors (225711465).

490240407 is a wasteful number, since it uses less digits than its factorization.

490240407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 490240407 is about 22141.3731958973. The cubic root of 490240407 is about 788.5024275514.

The spelling of 490240407 in words is "four hundred ninety million, two hundred forty thousand, four hundred seven".

Divisors: 1 3 17 51 53 67 159 201 901 1139 2703 2707 3417 3551 8121 10653 46019 60367 138057 143471 181101 181369 430413 544107 2439007 3083273 7317021 9249819 9612557 28837671 163413469 490240407