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490916469 = 3163638823
BaseRepresentation
bin11101010000101…
…100101001110101
31021012202010210110
4131100230221311
52001133311334
6120414013233
715110502231
oct3520545165
91235663713
10490916469
1123212289a
121184a7219
137a924724
14492ad5c1
152d171ae9
hex1d42ca75

490916469 has 4 divisors (see below), whose sum is σ = 654555296. Its totient is φ = 327277644.

The previous prime is 490916467. The next prime is 490916477. The reversal of 490916469 is 964619094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 490916469 - 21 = 490916467 is a prime.

It is a super-2 number, since 2×4909164692 = 481997959070855922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490916467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81819409 + ... + 81819414.

It is an arithmetic number, because the mean of its divisors is an integer number (163638824).

Almost surely, 2490916469 is an apocalyptic number.

It is an amenable number.

490916469 is a deficient number, since it is larger than the sum of its proper divisors (163638827).

490916469 is a wasteful number, since it uses less digits than its factorization.

490916469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163638826.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 490916469 is about 22156.6348753596. The cubic root of 490916469 is about 788.8647203254.

The spelling of 490916469 in words is "four hundred ninety million, nine hundred sixteen thousand, four hundred sixty-nine".

Divisors: 1 3 163638823 490916469