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605072431 = 2326307497
BaseRepresentation
bin100100000100001…
…010110000101111
31120011112212100001
4210010022300233
52214344304211
6140012445131
720665013365
oct4404126057
91504485301
10605072431
11290602967
1214a7797a7
1398483632
145a507635
15381c0ac1
hex2410ac2f

605072431 has 4 divisors (see below), whose sum is σ = 631379952. Its totient is φ = 578764912.

The previous prime is 605072417. The next prime is 605072441. The reversal of 605072431 is 134270506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-605072431 is a prime.

It is a super-2 number, since 2×6050724312 = 732225293512499522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 605072431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605072401) 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, 13153726 + ... + 13153771.

It is an arithmetic number, because the mean of its divisors is an integer number (157844988).

Almost surely, 2605072431 is an apocalyptic number.

605072431 is a deficient number, since it is larger than the sum of its proper divisors (26307521).

605072431 is a wasteful number, since it uses less digits than its factorization.

605072431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26307520.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 605072431 is about 24598.2200778837. The cubic root of 605072431 is about 845.8028064748.

The spelling of 605072431 in words is "six hundred five million, seventy-two thousand, four hundred thirty-one".

Divisors: 1 23 26307497 605072431