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420026253 = 32310756891
BaseRepresentation
bin11001000010010…
…001011110001101
31002021100112200220
4121002101132031
51330011320003
6105402341553
713260110223
oct3102213615
91067315626
10420026253
111a6103a39
12b87ba8b9
136903395a
143dad8b13
1526d1c353
hex1909178d

420026253 has 16 divisors (see below), whose sum is σ = 589856256. Its totient is φ = 265334960.

The previous prime is 420026249. The next prime is 420026267. The reversal of 420026253 is 352620024.

It is a cyclic number.

It is not a de Polignac number, because 420026253 - 22 = 420026249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420026213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21063 + ... + 35828.

It is an arithmetic number, because the mean of its divisors is an integer number (36866016).

Almost surely, 2420026253 is an apocalyptic number.

It is an amenable number.

420026253 is a deficient number, since it is larger than the sum of its proper divisors (169830003).

420026253 is a wasteful number, since it uses less digits than its factorization.

420026253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57024.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 420026253 is about 20494.5420295258. The cubic root of 420026253 is about 748.9028419973.

Adding to 420026253 its reverse (352620024), we get a palindrome (772646277).

The spelling of 420026253 in words is "four hundred twenty million, twenty-six thousand, two hundred fifty-three".

Divisors: 1 3 23 69 107 321 2461 7383 56891 170673 1308493 3925479 6087337 18262011 140008751 420026253