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4220113431 = 31406704477
BaseRepresentation
bin1111101110001001…
…1101001000010111
3101220002212222022110
43323202131020113
532120322112211
61534431402103
7206402241462
oct37342351027
911802788273
104220113431
111876164756
12999383333
135233cb951
142c06902d9
1519a753ea6
hexfb89d217

4220113431 has 4 divisors (see below), whose sum is σ = 5626817912. Its totient is φ = 2813408952.

The previous prime is 4220113423. The next prime is 4220113453. The reversal of 4220113431 is 1343110224.

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

It is not a de Polignac number, because 4220113431 - 23 = 4220113423 is a prime.

It is a super-2 number, since 2×42201134312 = 35618714741013183522, 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 = 4220113398 and 4220113407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220113831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703352236 + ... + 703352241.

It is an arithmetic number, because the mean of its divisors is an integer number (1406704478).

Almost surely, 24220113431 is an apocalyptic number.

4220113431 is a deficient number, since it is larger than the sum of its proper divisors (1406704481).

4220113431 is a wasteful number, since it uses less digits than its factorization.

4220113431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406704480.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4220113431 is about 64962.4001326921. The cubic root of 4220113431 is about 1616.0000682888. Note that the first 4 decimals are identical.

Adding to 4220113431 its reverse (1343110224), we get a palindrome (5563223655).

The spelling of 4220113431 in words is "four billion, two hundred twenty million, one hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 3 1406704477 4220113431