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BaseRepresentation
bin1001000011101100…
…1100010100110001
320021110011202021012
42100323030110301
514434421423311
61041134040305
7114152602634
oct22073142461
96243152235
102431436081
111038533a08
1257a349095
132c9974499
14190cc3c1b
15e36d578b
hex90ecc531

2431436081 has 2 divisors, whose sum is σ = 2431436082. Its totient is φ = 2431436080.

The previous prime is 2431436071. The next prime is 2431436083. The reversal of 2431436081 is 1806341342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2424676081 + 6760000 = 49241^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431436081 - 222 = 2427241777 is a prime.

It is a super-2 number, since 2×24314360812 = 11823762831977277122, which contains 22 as substring.

Together with 2431436083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2431436083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215718040 + 1215718041.

It is an arithmetic number, because the mean of its divisors is an integer number (1215718041).

Almost surely, 22431436081 is an apocalyptic number.

It is an amenable number.

2431436081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431436081 is an equidigital number, since it uses as much as digits as its factorization.

2431436081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 2431436081 is about 49309.5942084297. The cubic root of 2431436081 is about 1344.6862137961.

The spelling of 2431436081 in words is "two billion, four hundred thirty-one million, four hundred thirty-six thousand, eighty-one".