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553950769 = 4129134161
BaseRepresentation
bin100001000001001…
…001111000110001
31102121100121121011
4201001021320301
52113302411034
6130545030521
716504334551
oct4101117061
91377317534
10553950769
11264766459
12135625441
138a9c4828
14537db161
1533973864
hex21049e31

553950769 has 4 divisors (see below), whose sum is σ = 554089060. Its totient is φ = 553812480.

The previous prime is 553950751. The next prime is 553950799. The reversal of 553950769 is 967059355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967059355 = 5193411871.

It can be written as a sum of positive squares in 2 ways, for example, as 225000000 + 328950769 = 15000^2 + 18137^2 .

It is a cyclic number.

It is not a de Polignac number, because 553950769 - 25 = 553950737 is a prime.

It is a super-2 number, since 2×5539507692 = 613722908951382722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553950739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62952 + ... + 71209.

It is an arithmetic number, because the mean of its divisors is an integer number (138522265).

Almost surely, 2553950769 is an apocalyptic number.

It is an amenable number.

553950769 is a deficient number, since it is larger than the sum of its proper divisors (138291).

553950769 is a wasteful number, since it uses less digits than its factorization.

553950769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138290.

The product of its (nonzero) digits is 1275750, while the sum is 49.

The square root of 553950769 is about 23536.1587562627. The cubic root of 553950769 is about 821.2783792619.

The spelling of 553950769 in words is "five hundred fifty-three million, nine hundred fifty thousand, seven hundred sixty-nine".

Divisors: 1 4129 134161 553950769