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420231045253 = 2373250286507
BaseRepresentation
bin1100001110101111011…
…10001110000010000101
31111011200121211221202011
412013113232032002011
523341113121422003
6521015041414221
742234500643145
oct6072756160205
91434617757664
10420231045253
11152245519108
126953a63a371
1330820b4cc36
14164a702c925
15ade7aa246d
hex61d7b8e085

420231045253 has 8 divisors (see below), whose sum is σ = 444508838208. Its totient is φ = 396453825504.

The previous prime is 420231045217. The next prime is 420231045263. The reversal of 420231045253 is 352540132024.

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

It is not a de Polignac number, because 420231045253 - 29 = 420231044741 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 (420231045263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125141575 + ... + 125144932.

It is an arithmetic number, because the mean of its divisors is an integer number (55563604776).

Almost surely, 2420231045253 is an apocalyptic number.

It is an amenable number.

420231045253 is a deficient number, since it is larger than the sum of its proper divisors (24277792955).

420231045253 is a wasteful number, since it uses less digits than its factorization.

420231045253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250286603.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 420231045253 its reverse (352540132024), we get a palindrome (772771177277).

The spelling of 420231045253 in words is "four hundred twenty billion, two hundred thirty-one million, forty-five thousand, two hundred fifty-three".

Divisors: 1 23 73 1679 250286507 5756589661 18270915011 420231045253