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30144340443 = 376721424549
BaseRepresentation
bin11100000100101111…
…100010000111011011
32212210210220011020110
4130010233202013123
5443213422343233
621503105455403
72115001444320
oct340457420733
985723804213
1030144340443
1111869770158
125a13341563
132ac5261c49
14165d69cb47
15bb663b663
hex704be21db

30144340443 has 16 divisors (see below), whose sum is σ = 46619820800. Its totient is φ = 16968242016.

The previous prime is 30144340399. The next prime is 30144340487. The reversal of 30144340443 is 34404344103.

It is an interprime number because it is at equal distance from previous prime (30144340399) and next prime (30144340487).

It is not a de Polignac number, because 30144340443 - 26 = 30144340379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30144340443.

It is not an unprimeable number, because it can be changed into a prime (30144340243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10710868 + ... + 10713681.

It is an arithmetic number, because the mean of its divisors is an integer number (2913738800).

Almost surely, 230144340443 is an apocalyptic number.

30144340443 is a deficient number, since it is larger than the sum of its proper divisors (16475480357).

30144340443 is a wasteful number, since it uses less digits than its factorization.

30144340443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21424626.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 30144340443 its reverse (34404344103), we get a palindrome (64548684546).

The spelling of 30144340443 in words is "thirty billion, one hundred forty-four million, three hundred forty thousand, four hundred forty-three".

Divisors: 1 3 7 21 67 201 469 1407 21424549 64273647 149971843 449915529 1435444783 4306334349 10048113481 30144340443