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425800431 = 32719355723
BaseRepresentation
bin11001011000010…
…011001011101111
31002200012220101100
4121120103023233
51333001103211
6110130214143
713360146450
oct3130231357
91080186340
10425800431
111a9398191
12ba724353
136a2a5c24
144079d127
15275ad156
hex196132ef

425800431 has 24 divisors (see below), whose sum is σ = 739905920. Its totient is φ = 230507856.

The previous prime is 425800421. The next prime is 425800439. The reversal of 425800431 is 134008524.

425800431 is a `hidden beast` number, since 42 + 580 + 0 + 43 + 1 = 666.

It is not a de Polignac number, because 425800431 - 25 = 425800399 is a prime.

It is a super-2 number, since 2×4258004312 = 362612014079571522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425800395 and 425800404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425800439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176665 + ... + 179058.

Almost surely, 2425800431 is an apocalyptic number.

425800431 is a deficient number, since it is larger than the sum of its proper divisors (314105489).

425800431 is a wasteful number, since it uses less digits than its factorization.

425800431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355755 (or 355752 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 425800431 is about 20634.9322993801. The cubic root of 425800431 is about 752.3190035730.

Adding to 425800431 its reverse (134008524), we get a palindrome (559808955).

The spelling of 425800431 in words is "four hundred twenty-five million, eight hundred thousand, four hundred thirty-one".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 355723 1067169 2490061 3201507 6758737 7470183 20276211 22410549 47311159 60828633 141933477 425800431