Base | Representation |
---|---|
bin | 11100000011010011… |
… | …001110100100101111 |
3 | 2212202010100210210110 |
4 | 130003103032210233 |
5 | 443141224040101 |
6 | 21500443111103 |
7 | 2114255664300 |
oct | 340323164457 |
9 | 85663323713 |
10 | 30120143151 |
11 | 1185704339a |
12 | 5a07212493 |
13 | 2ac023c217 |
14 | 165a3a07a7 |
15 | bb445bcd6 |
hex | 7034ce92f |
30120143151 has 48 divisors (see below), whose sum is σ = 49527582720. Its totient is φ = 16206039360.
The previous prime is 30120143149. The next prime is 30120143171. The reversal of 30120143151 is 15134102103.
It is not a de Polignac number, because 30120143151 - 21 = 30120143149 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30120143171) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79290 + ... + 257928.
It is an arithmetic number, because the mean of its divisors is an integer number (1031824640).
Almost surely, 230120143151 is an apocalyptic number.
30120143151 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30120143151 is a deficient number, since it is larger than the sum of its proper divisors (19407439569).
30120143151 is a wasteful number, since it uses less digits than its factorization.
30120143151 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 178724 (or 178717 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 21.
Adding to 30120143151 its reverse (15134102103), we get a palindrome (45254245254).
The spelling of 30120143151 in words is "thirty billion, one hundred twenty million, one hundred forty-three thousand, one hundred fifty-one".
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