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30010144621 = 59508646519
BaseRepresentation
bin11011111100101111…
…100111011101101101
32212110110101022011211
4123330233213131231
5442430044111441
621441513314421
72111452010002
oct337457473555
985413338154
1030010144621
11117aaa42916
125996405a11
132aa3507732
1416499298a9
15ba997ea81
hex6fcbe776d

30010144621 has 4 divisors (see below), whose sum is σ = 30518791200. Its totient is φ = 29501498044.

The previous prime is 30010144609. The next prime is 30010144649. The reversal of 30010144621 is 12644101003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30010144621 - 211 = 30010142573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30010144592 and 30010144601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010144121) 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, 254323201 + ... + 254323318.

It is an arithmetic number, because the mean of its divisors is an integer number (7629697800).

Almost surely, 230010144621 is an apocalyptic number.

It is an amenable number.

30010144621 is a deficient number, since it is larger than the sum of its proper divisors (508646579).

30010144621 is an equidigital number, since it uses as much as digits as its factorization.

30010144621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508646578.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 30010144621 its reverse (12644101003), we get a palindrome (42654245624).

The spelling of 30010144621 in words is "thirty billion, ten million, one hundred forty-four thousand, six hundred twenty-one".

Divisors: 1 59 508646519 30010144621