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490277769 = 31163140521
BaseRepresentation
bin11101001110010…
…000101110001001
31021011112200122220
4131032100232021
52001002342034
6120352204253
715102202152
oct3516205611
91234480586
10490277769
11231826a43
12118239689
137a75cab7
1449184929
152d097749
hex1d390b89

490277769 has 8 divisors (see below), whose sum is σ = 654270432. Its totient is φ = 326568480.

The previous prime is 490277761. The next prime is 490277783. The reversal of 490277769 is 967772094.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490277769 - 23 = 490277761 is a prime.

It is a super-2 number, since 2×4902777692 = 480744581551234722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490277761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66772 + ... + 73749.

It is an arithmetic number, because the mean of its divisors is an integer number (81783804).

Almost surely, 2490277769 is an apocalyptic number.

It is an amenable number.

490277769 is a deficient number, since it is larger than the sum of its proper divisors (163992663).

490277769 is a wasteful number, since it uses less digits than its factorization.

490277769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141687.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 490277769 is about 22142.2168944304. The cubic root of 490277769 is about 788.5224580500.

The spelling of 490277769 in words is "four hundred ninety million, two hundred seventy-seven thousand, seven hundred sixty-nine".

Divisors: 1 3 1163 3489 140521 421563 163425923 490277769