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3240123242 = 21620061621
BaseRepresentation
bin1100000100100000…
…0101101101101010
322100210212022111112
43001020011231222
523113432420432
61253303030322
7143202410306
oct30110055552
98323768445
103240123242
111412a68604
1276513b3a2
133c83794b5
1422a470d06
1513e6c67b2
hexc1205b6a

3240123242 has 4 divisors (see below), whose sum is σ = 4860184866. Its totient is φ = 1620061620.

The previous prime is 3240123217. The next prime is 3240123247. The reversal of 3240123242 is 2423210423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2423210423 = 2838562581.

It can be written as a sum of positive squares in only one way, i.e., 2995482361 + 244640881 = 54731^2 + 15641^2 .

It is not an unprimeable number, because it can be changed into a prime (3240123247) 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 as a sum of consecutive naturals, namely, 810030809 + ... + 810030812.

Almost surely, 23240123242 is an apocalyptic number.

3240123242 is a deficient number, since it is larger than the sum of its proper divisors (1620061624).

3240123242 is a wasteful number, since it uses less digits than its factorization.

3240123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620061623.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3240123242 is about 56922.0804433570. The cubic root of 3240123242 is about 1479.7460061449.

Adding to 3240123242 its reverse (2423210423), we get a palindrome (5663333665).

The spelling of 3240123242 in words is "three billion, two hundred forty million, one hundred twenty-three thousand, two hundred forty-two".

Divisors: 1 2 1620061621 3240123242