Base | Representation |
---|---|
bin | 11100010101011110… |
… | …101111110000001001 |
3 | 2220112101021212222210 |
4 | 130111132233300021 |
5 | 444302314340041 |
6 | 21551020335333 |
7 | 2124651346401 |
oct | 342536576011 |
9 | 86471255883 |
10 | 30425152521 |
11 | 119a3229455 |
12 | 5a913a4549 |
13 | 2b3b4a213a |
14 | 1688ab9801 |
15 | bd110a016 |
hex | 7157afc09 |
30425152521 has 8 divisors (see below), whose sum is σ = 40567681440. Its totient is φ = 20283029312.
The previous prime is 30425152489. The next prime is 30425152529. The reversal of 30425152521 is 12525152403.
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 30425152521 - 25 = 30425152489 is a prime.
It is a super-2 number, since 2×304251525212 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30425152529) 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, 211345 + ... + 324833.
It is an arithmetic number, because the mean of its divisors is an integer number (5070960180).
Almost surely, 230425152521 is an apocalyptic number.
It is an amenable number.
30425152521 is a deficient number, since it is larger than the sum of its proper divisors (10142528919).
30425152521 is a wasteful number, since it uses less digits than its factorization.
30425152521 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 202855.
The product of its (nonzero) digits is 12000, while the sum is 30.
The spelling of 30425152521 in words is "thirty billion, four hundred twenty-five million, one hundred fifty-two thousand, five hundred twenty-one".
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