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10530424243 = 80691305047
BaseRepresentation
bin10011100111010100…
…11000010110110011
31000011212211222101201
421303222120112303
5133031242033433
64500531312031
7521645062213
oct116352302663
930155758351
1010530424243
114514171659
12205a74b617
13cba865681
1471c798243
15419735a7d
hex273a985b3

10530424243 has 4 divisors (see below), whose sum is σ = 10531737360. Its totient is φ = 10529111128.

The previous prime is 10530424231. The next prime is 10530424277. The reversal of 10530424243 is 34242403501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34242403501 = 56087610523.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10530424243 is a prime.

It is a super-2 number, since 2×105304242432 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10530424043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644455 + ... + 660592.

It is an arithmetic number, because the mean of its divisors is an integer number (2632934340).

Almost surely, 210530424243 is an apocalyptic number.

10530424243 is a deficient number, since it is larger than the sum of its proper divisors (1313117).

10530424243 is an equidigital number, since it uses as much as digits as its factorization.

10530424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313116.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 10530424243 its reverse (34242403501), we get a palindrome (44772827744).

The spelling of 10530424243 in words is "ten billion, five hundred thirty million, four hundred twenty-four thousand, two hundred forty-three".

Divisors: 1 8069 1305047 10530424243