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2430253405 = 5486050681
BaseRepresentation
bin1001000011011010…
…1011100101011101
320021100221122221101
42100312223211131
514434121102110
61041052433101
7114136545616
oct22066534535
96240848841
102430253405
1110378a6398
12579a78791
132c964c088
14190a96c0d
15e355013a
hex90dab95d

2430253405 has 4 divisors (see below), whose sum is σ = 2916304092. Its totient is φ = 1944202720.

The previous prime is 2430253381. The next prime is 2430253417. The reversal of 2430253405 is 5043520342.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1345275684 + 1084977721 = 36678^2 + 32939^2 .

It is not a de Polignac number, because 2430253405 - 219 = 2429729117 is a prime.

It is a super-2 number, since 2×24302534052 = 11812263225028188050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 243025336 + ... + 243025345.

It is an arithmetic number, because the mean of its divisors is an integer number (729076023).

Almost surely, 22430253405 is an apocalyptic number.

It is an amenable number.

2430253405 is a deficient number, since it is larger than the sum of its proper divisors (486050687).

2430253405 is an equidigital number, since it uses as much as digits as its factorization.

2430253405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486050686.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 2430253405 is about 49297.6003979910. The cubic root of 2430253405 is about 1344.4681552798.

Adding to 2430253405 its reverse (5043520342), we get a palindrome (7473773747).

The spelling of 2430253405 in words is "two billion, four hundred thirty million, two hundred fifty-three thousand, four hundred five".

Divisors: 1 5 486050681 2430253405