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545430607 = 1906928603
BaseRepresentation
bin100000100000101…
…001110001001111
31102000022202010121
4200200221301033
52104112234412
6130042245411
716342040461
oct4040516117
91360282117
10545430607
1125a9770a7
121327b6867
1389000707
1452620131
1532d3e107
hex20829c4f

545430607 has 4 divisors (see below), whose sum is σ = 545478280. Its totient is φ = 545382936.

The previous prime is 545430593. The next prime is 545430623. The reversal of 545430607 is 706034545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(545430607) divides (545430607-1)3.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-545430607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545430007) 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, 4768 + ... + 33370.

It is an arithmetic number, because the mean of its divisors is an integer number (136369570).

Almost surely, 2545430607 is an apocalyptic number.

545430607 is the 19069-th pentagonal number.

545430607 is a deficient number, since it is larger than the sum of its proper divisors (47673).

545430607 is a wasteful number, since it uses less digits than its factorization.

545430607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47672.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 545430607 is about 23354.4558275289. The cubic root of 545430607 is about 817.0459876824.

The spelling of 545430607 in words is "five hundred forty-five million, four hundred thirty thousand, six hundred seven".

Divisors: 1 19069 28603 545430607