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424320231 = 3349940423
BaseRepresentation
bin11001010010101…
…001110011100111
31002120102200221010
4121102221303213
51332111221411
6110034353303
713341443136
oct3122516347
91076380833
10424320231
111a8577085
12ba12b833
1369ba827a
14404d591d
15273b97a6
hex194a9ce7

424320231 has 8 divisors (see below), whose sum is σ = 565936000. Its totient is φ = 282792312.

The previous prime is 424320229. The next prime is 424320241. The reversal of 424320231 is 132023424.

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

It is not a de Polignac number, because 424320231 - 21 = 424320229 is a prime.

It is a super-2 number, since 2×4243202312 = 360095316871786722, 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 = 424320198 and 424320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424320241) 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, 9715 + ... + 30708.

It is an arithmetic number, because the mean of its divisors is an integer number (70742000).

Almost surely, 2424320231 is an apocalyptic number.

424320231 is a deficient number, since it is larger than the sum of its proper divisors (141615769).

424320231 is a wasteful number, since it uses less digits than its factorization.

424320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43925.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 424320231 is about 20599.0347103936. The cubic root of 424320231 is about 751.4462351903.

Adding to 424320231 its reverse (132023424), we get a palindrome (556343655).

The spelling of 424320231 in words is "four hundred twenty-four million, three hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 3499 10497 40423 121269 141440077 424320231