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30046211421 = 310015403807
BaseRepresentation
bin11011111110111001…
…001100110101011101
32212112222020200112020
4123332321030311131
5443013312231141
621445242330353
72112400404012
oct337671146535
985488220466
1030046211421
1111819337396
1259a64b99b9
132aaab24c35
141650637709
15bacc06266
hex6fee4cd5d

30046211421 has 4 divisors (see below), whose sum is σ = 40061615232. Its totient is φ = 20030807612.

The previous prime is 30046211387. The next prime is 30046211441. The reversal of 30046211421 is 12411264003.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12411264003 = 34137088001.

It is a cyclic number.

It is not a de Polignac number, because 30046211421 - 230 = 28972469597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30046211391 and 30046211400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30046211441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5007701901 + ... + 5007701906.

It is an arithmetic number, because the mean of its divisors is an integer number (10015403808).

Almost surely, 230046211421 is an apocalyptic number.

It is an amenable number.

30046211421 is a deficient number, since it is larger than the sum of its proper divisors (10015403811).

30046211421 is a wasteful number, since it uses less digits than its factorization.

30046211421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015403810.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 30046211421 its reverse (12411264003), we get a palindrome (42457475424).

The spelling of 30046211421 in words is "thirty billion, forty-six million, two hundred eleven thousand, four hundred twenty-one".

Divisors: 1 3 10015403807 30046211421