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30420016015 = 537164432519
BaseRepresentation
bin11100010101001011…
…001001101110001111
32220112000121221000211
4130111023021232033
5444300011003030
621550314303251
72124556604224
oct342513115617
986460557024
1030420016015
11119a0340304
125a8b727b27
132b3a3c419c
14168813d94b
15bd094312a
hex7152c9b8f

30420016015 has 8 divisors (see below), whose sum is σ = 37490614560. Its totient is φ = 23678282592.

The previous prime is 30420016013. The next prime is 30420016021. The reversal of 30420016015 is 51061002403.

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 30420016015 - 21 = 30420016013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420016013) 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, 82216075 + ... + 82216444.

It is an arithmetic number, because the mean of its divisors is an integer number (4686326820).

Almost surely, 230420016015 is an apocalyptic number.

30420016015 is a deficient number, since it is larger than the sum of its proper divisors (7070598545).

30420016015 is a wasteful number, since it uses less digits than its factorization.

30420016015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164432561.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 30420016015 its reverse (51061002403), we get a palindrome (81481018418).

The spelling of 30420016015 in words is "thirty billion, four hundred twenty million, sixteen thousand, fifteen".

Divisors: 1 5 37 185 164432519 822162595 6084003203 30420016015