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2420140223 = 3221751363
BaseRepresentation
bin1001000001000000…
…0110100010111111
320020122220212021002
42100100012202333
514424023441343
61040052000515
7113654565254
oct22020064277
96218825232
102420140223
111032119196
1257660013b
132c751ab47
1418d5c342b
15e27038b8
hex904068bf

2420140223 has 4 divisors (see below), whose sum is σ = 2420894808. Its totient is φ = 2419385640.

The previous prime is 2420140211. The next prime is 2420140253. The reversal of 2420140223 is 3220410242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2420140223 - 26 = 2420140159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2420140195 and 2420140204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420140253) 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 3 ways as a sum of consecutive naturals, for example, 372461 + ... + 378902.

It is an arithmetic number, because the mean of its divisors is an integer number (605223702).

Almost surely, 22420140223 is an apocalyptic number.

2420140223 is a deficient number, since it is larger than the sum of its proper divisors (754585).

2420140223 is an equidigital number, since it uses as much as digits as its factorization.

2420140223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754584.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2420140223 is about 49194.9207032596. The cubic root of 2420140223 is about 1342.6006195254.

Adding to 2420140223 its reverse (3220410242), we get a palindrome (5640550465).

The spelling of 2420140223 in words is "two billion, four hundred twenty million, one hundred forty thousand, two hundred twenty-three".

Divisors: 1 3221 751363 2420140223