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420144053 = 7439113669
BaseRepresentation
bin11001000010101…
…110001110110101
31002021120112021212
4121002232032311
51330024102203
6105405051205
713261110530
oct3102561665
91067515255
10420144053
111a618449a
12b8856b05
1369075464
143db29a17
1526d421d8
hex190ae3b5

420144053 has 8 divisors (see below), whose sum is σ = 480309120. Its totient is φ = 360015120.

The previous prime is 420144029. The next prime is 420144071. The reversal of 420144053 is 350441024.

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 420144053 - 26 = 420143989 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 (420144353) 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, 23903 + ... + 37571.

It is an arithmetic number, because the mean of its divisors is an integer number (60038640).

Almost surely, 2420144053 is an apocalyptic number.

It is an amenable number.

420144053 is a deficient number, since it is larger than the sum of its proper divisors (60165067).

420144053 is a wasteful number, since it uses less digits than its factorization.

420144053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18067.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 420144053 is about 20497.4157639445. The cubic root of 420144053 is about 748.9728475489.

Adding to 420144053 its reverse (350441024), we get a palindrome (770585077).

The spelling of 420144053 in words is "four hundred twenty million, one hundred forty-four thousand, fifty-three".

Divisors: 1 7 4391 13669 30737 95683 60020579 420144053