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240214013 = 1397718913
BaseRepresentation
bin11100101000101…
…01111111111101
3121202000010200022
432110111333331
5442443322023
635500341525
75644533254
oct1624257775
9552003608
10240214013
1111365a386
12685448a5
133a9c7390
1423c8d79b
151614e7c8
hexe515ffd

240214013 has 8 divisors (see below), whose sum is σ = 258970488. Its totient is φ = 221497344.

The previous prime is 240213997. The next prime is 240214021. The reversal of 240214013 is 310412042.

It can be written as a sum of positive squares in 4 ways, for example, as 115713049 + 124500964 = 10757^2 + 11158^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240214013 - 24 = 240213997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240213982 and 240214000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240214033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 22157.

It is an arithmetic number, because the mean of its divisors is an integer number (32371311).

Almost surely, 2240214013 is an apocalyptic number.

It is an amenable number.

240214013 is a deficient number, since it is larger than the sum of its proper divisors (18756475).

240214013 is a wasteful number, since it uses less digits than its factorization.

240214013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19903.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 240214013 is about 15498.8390855573. The cubic root of 240214013 is about 621.6311652427.

Adding to 240214013 its reverse (310412042), we get a palindrome (550626055).

The spelling of 240214013 in words is "two hundred forty million, two hundred fourteen thousand, thirteen".

Divisors: 1 13 977 12701 18913 245869 18478001 240214013