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542613431 = 4322375641
BaseRepresentation
bin100000010101111…
…001111110110111
31101211000121200202
4200111321332313
52102402112211
6125502031115
716306065233
oct4025717667
91354017622
10542613431
11259322558
1213187849b
1388555349
14520c95c3
153298453b
hex20579fb7

542613431 has 8 divisors (see below), whose sum is σ = 555579024. Its totient is φ = 529663680.

The previous prime is 542613427. The next prime is 542613521. The reversal of 542613431 is 134316245.

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

It is not a de Polignac number, because 542613431 - 22 = 542613427 is a prime.

It is a super-2 number, since 2×5426134312 = 588858671003183522, 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 = 542613394 and 542613403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542613031) 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, 93371 + ... + 99011.

It is an arithmetic number, because the mean of its divisors is an integer number (69447378).

Almost surely, 2542613431 is an apocalyptic number.

542613431 is a deficient number, since it is larger than the sum of its proper divisors (12965593).

542613431 is a wasteful number, since it uses less digits than its factorization.

542613431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921.

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

The square root of 542613431 is about 23294.0642868521. The cubic root of 542613431 is about 815.6368645456.

Adding to 542613431 its reverse (134316245), we get a palindrome (676929676).

The spelling of 542613431 in words is "five hundred forty-two million, six hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 43 2237 5641 96191 242563 12618917 542613431