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30424440551 = 229132857819
BaseRepresentation
bin11100010101011100…
…000001111011100111
32220112022221201100112
4130111130001323213
5444302124044201
621550553203235
72124642322601
oct342534017347
986468851315
1030424440551
11119a289254a
125a9110051b
132b3b2b305b
141688972171
15bd10190bb
hex715701ee7

30424440551 has 4 divisors (see below), whose sum is σ = 30557298600. Its totient is φ = 30291582504.

The previous prime is 30424440521. The next prime is 30424440559. The reversal of 30424440551 is 15504442403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15504442403 = 48497319699.

It is a cyclic number.

It is not a de Polignac number, because 30424440551 - 210 = 30424439527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30424440559) 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 3 ways as a sum of consecutive naturals, for example, 66428681 + ... + 66429138.

It is an arithmetic number, because the mean of its divisors is an integer number (7639324650).

Almost surely, 230424440551 is an apocalyptic number.

30424440551 is a deficient number, since it is larger than the sum of its proper divisors (132858049).

30424440551 is a wasteful number, since it uses less digits than its factorization.

30424440551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132858048.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 30424440551 its reverse (15504442403), we get a palindrome (45928882954).

The spelling of 30424440551 in words is "thirty billion, four hundred twenty-four million, four hundred forty thousand, five hundred fifty-one".

Divisors: 1 229 132857819 30424440551