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2431442131 = 11321517187
BaseRepresentation
bin1001000011101100…
…1101110011010011
320021110012001120021
42100323031303103
514434422122011
61041134124311
7114152626366
oct22073156323
96243161507
102431442131
111038538508
1257a350697
132c9977171
14190cc60dd
15e36d7471
hex90ecdcd3

2431442131 has 4 divisors (see below), whose sum is σ = 2452959432. Its totient is φ = 2409924832.

The previous prime is 2431442059. The next prime is 2431442159. The reversal of 2431442131 is 1312441342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2431442131 is a prime.

It is a super-2 number, since 2×24314421312 = 11823821672803642322, 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 = 2431442096 and 2431442105.

It is not an unprimeable number, because it can be changed into a prime (2431442191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10758481 + ... + 10758706.

It is an arithmetic number, because the mean of its divisors is an integer number (613239858).

Almost surely, 22431442131 is an apocalyptic number.

2431442131 is a deficient number, since it is larger than the sum of its proper divisors (21517301).

2431442131 is a wasteful number, since it uses less digits than its factorization.

2431442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21517300.

The product of its digits is 2304, while the sum is 25.

The square root of 2431442131 is about 49309.6555554792. The cubic root of 2431442131 is about 1344.6873290965.

Adding to 2431442131 its reverse (1312441342), we get a palindrome (3743883473).

The spelling of 2431442131 in words is "two billion, four hundred thirty-one million, four hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 113 21517187 2431442131