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512364431 = 1929929881
BaseRepresentation
bin11110100010100…
…000111110001111
31022201002210212102
4132202200332033
52022131130211
6122501425315
715461011565
oct3642407617
91281083772
10512364431
11243241a87
1212370b23b
13821c3c27
144c093a35
152eeaba3b
hex1e8a0f8f

512364431 has 8 divisors (see below), whose sum is σ = 557929200. Its totient is φ = 468659520.

The previous prime is 512364389. The next prime is 512364439. The reversal of 512364431 is 134463215.

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

It is a cyclic number.

It is not a de Polignac number, because 512364431 - 218 = 512102287 is a prime.

It is a super-2 number, since 2×5123644312 = 525034620307907522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 512364394 and 512364403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512364439) 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, 464390 + ... + 465491.

It is an arithmetic number, because the mean of its divisors is an integer number (69741150).

Almost surely, 2512364431 is an apocalyptic number.

512364431 is a deficient number, since it is larger than the sum of its proper divisors (45564769).

512364431 is a wasteful number, since it uses less digits than its factorization.

512364431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929929.

The product of its digits is 8640, while the sum is 29.

The square root of 512364431 is about 22635.4684289944. The cubic root of 512364431 is about 800.1897627965.

The spelling of 512364431 in words is "five hundred twelve million, three hundred sixty-four thousand, four hundred thirty-one".

Divisors: 1 19 29 551 929881 17667739 26966549 512364431