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512229049 = 673761113
BaseRepresentation
bin11110100001111…
…111111010111001
31022200211221011021
4132201333322321
52022112312144
6122454502441
715456606103
oct3641777271
91280757137
10512229049
1124315a2a2
12123664a21
1382177417
144c05a573
152ee81884
hex1e87feb9

512229049 has 4 divisors (see below), whose sum is σ = 512990836. Its totient is φ = 511467264.

The previous prime is 512229043. The next prime is 512229061. The reversal of 512229049 is 940922215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940922215 = 5188184443.

It can be written as a sum of positive squares in 2 ways, for example, as 389351824 + 122877225 = 19732^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 512229049 - 227 = 378011321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512229043) 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, 379884 + ... + 381229.

It is an arithmetic number, because the mean of its divisors is an integer number (128247709).

Almost surely, 2512229049 is an apocalyptic number.

It is an amenable number.

512229049 is a deficient number, since it is larger than the sum of its proper divisors (761787).

512229049 is an equidigital number, since it uses as much as digits as its factorization.

512229049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761786.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 512229049 is about 22632.4777476970. The cubic root of 512229049 is about 800.1192785691.

The spelling of 512229049 in words is "five hundred twelve million, two hundred twenty-nine thousand, forty-nine".

Divisors: 1 673 761113 512229049