Base | Representation |
---|---|
bin | 11100000101100001… |
… | …010110110011101000 |
3 | 2212211201110201101122 |
4 | 130011201112303220 |
5 | 443230243320240 |
6 | 21504253434412 |
7 | 2115220452554 |
oct | 340541266350 |
9 | 85751421348 |
10 | 30157401320 |
11 | 11876080a72 |
12 | 5a1779ba08 |
13 | 2ac7b85a87 |
14 | 16612dc864 |
15 | bb786b4b5 |
hex | 705856ce8 |
30157401320 has 32 divisors (see below), whose sum is σ = 67867648200. Its totient is φ = 12060561408.
The previous prime is 30157401317. The next prime is 30157401341. The reversal of 30157401320 is 2310475103.
It can be written as a sum of positive squares in 4 ways, for example, as 24988654084 + 5168747236 = 158078^2 + 71894^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 30157401320.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135992 + ... + 280728.
Almost surely, 230157401320 is an apocalyptic number.
It is an amenable number.
30157401320 is an abundant number, since it is smaller than the sum of its proper divisors (37710246880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30157401320 is a wasteful number, since it uses less digits than its factorization.
30157401320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149957 (or 149953 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 26.
Adding to 30157401320 its reverse (2310475103), we get a palindrome (32467876423).
The spelling of 30157401320 in words is "thirty billion, one hundred fifty-seven million, four hundred one thousand, three hundred twenty".
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