Base | Representation |
---|---|
bin | 11100000101011001… |
… | …001100010111100111 |
3 | 2212211120102222222220 |
4 | 130011121030113213 |
5 | 443224221331130 |
6 | 21504135523423 |
7 | 2115163331016 |
oct | 340531142747 |
9 | 85746388886 |
10 | 30155261415 |
11 | 1187494a254 |
12 | 5a16b29573 |
13 | 2ac75b6a66 |
14 | 1660d02a7d |
15 | bb7597410 |
hex | 70564c5e7 |
30155261415 has 8 divisors (see below), whose sum is σ = 48248418288. Its totient is φ = 16082806080.
The previous prime is 30155261369. The next prime is 30155261417. The reversal of 30155261415 is 51416255103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30155261415 - 27 = 30155261287 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30155261417) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005175366 + ... + 1005175395.
It is an arithmetic number, because the mean of its divisors is an integer number (6031052286).
Almost surely, 230155261415 is an apocalyptic number.
30155261415 is a deficient number, since it is larger than the sum of its proper divisors (18093156873).
30155261415 is a wasteful number, since it uses less digits than its factorization.
30155261415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2010350769.
The product of its (nonzero) digits is 18000, while the sum is 33.
The spelling of 30155261415 in words is "thirty billion, one hundred fifty-five million, two hundred sixty-one thousand, four hundred fifteen".
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