Base | Representation |
---|---|
bin | 11100101100010000… |
… | …110010111000011010 |
3 | 2221112000111121120111 |
4 | 130230100302320122 |
5 | 1001043141340130 |
6 | 22052552514534 |
7 | 2140302223003 |
oct | 345420627032 |
9 | 87460447514 |
10 | 30807371290 |
11 | 12079a5a033 |
12 | 5b793aba4a |
13 | 2b9c7291a7 |
14 | 16c37721aa |
15 | c0495a02a |
hex | 72c432e1a |
30807371290 has 8 divisors (see below), whose sum is σ = 55453268340. Its totient is φ = 12322948512.
The previous prime is 30807371261. The next prime is 30807371291. The reversal of 30807371290 is 9217370803.
It can be written as a sum of positive squares in 2 ways, for example, as 29943187681 + 864183609 = 173041^2 + 29397^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (30807371291) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540368555 + ... + 1540368574.
Almost surely, 230807371290 is an apocalyptic number.
30807371290 is a deficient number, since it is larger than the sum of its proper divisors (24645897050).
30807371290 is a wasteful number, since it uses less digits than its factorization.
30807371290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3080737136.
The product of its (nonzero) digits is 63504, while the sum is 40.
The spelling of 30807371290 in words is "thirty billion, eight hundred seven million, three hundred seventy-one thousand, two hundred ninety".
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