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490286977 = 1399935023
BaseRepresentation
bin11101001110010…
…010111110000001
31021011120011021221
4131032102332001
52001003140402
6120352315041
715102241045
oct3516227601
91234504257
10490286977
11231832954
12118242a81
137a76404b
1449188025
152d09a337
hex1d392f81

490286977 has 4 divisors (see below), whose sum is σ = 490336000. Its totient is φ = 490237956.

The previous prime is 490286957. The next prime is 490286981. The reversal of 490286977 is 779682094.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 779682094 = 2389841047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-490286977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490286957) 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, 3513 + ... + 31510.

It is an arithmetic number, because the mean of its divisors is an integer number (122584000).

Almost surely, 2490286977 is an apocalyptic number.

It is an amenable number.

490286977 is a deficient number, since it is larger than the sum of its proper divisors (49023).

490286977 is a wasteful number, since it uses less digits than its factorization.

490286977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49022.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 490286977 is about 22142.4248220469. The cubic root of 490286977 is about 788.5273944825.

The spelling of 490286977 in words is "four hundred ninety million, two hundred eighty-six thousand, nine hundred seventy-seven".

Divisors: 1 13999 35023 490286977