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30442144143 = 383122257607
BaseRepresentation
bin11100010110011111…
…100100000110001111
32220120120021011010010
4130112133210012033
5444321142103033
621552424444303
72125245645555
oct342637440617
986516234103
1030442144143
1111a01884514
125a97019693
132b41b71158
14168b05dbd5
15bd2864863
hex7167e418f

30442144143 has 8 divisors (see below), whose sum is σ = 41078556288. Its totient is φ = 20050247384.

The previous prime is 30442144121. The next prime is 30442144153. The reversal of 30442144143 is 34144124403.

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 30442144143 - 233 = 21852209551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30442144143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442144153) 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, 61128555 + ... + 61129052.

It is an arithmetic number, because the mean of its divisors is an integer number (5134819536).

Almost surely, 230442144143 is an apocalyptic number.

30442144143 is a deficient number, since it is larger than the sum of its proper divisors (10636412145).

30442144143 is a wasteful number, since it uses less digits than its factorization.

30442144143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122257693.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 30442144143 its reverse (34144124403), we get a palindrome (64586268546).

The spelling of 30442144143 in words is "thirty billion, four hundred forty-two million, one hundred forty-four thousand, one hundred forty-three".

Divisors: 1 3 83 249 122257607 366772821 10147381381 30442144143