Base | Representation |
---|---|
bin | 11100110010100001… |
… | …110010110111011010 |
3 | 2221210100022020122222 |
4 | 130302201302313122 |
5 | 1001302044202340 |
6 | 22111225544042 |
7 | 2143016560244 |
oct | 346241626732 |
9 | 87710266588 |
10 | 30912490970 |
11 | 12123327aa9 |
12 | 5ba8645022 |
13 | 2bb844309a |
14 | 16d36d7094 |
15 | c0dcc18b5 |
hex | 732872dda |
30912490970 has 8 divisors (see below), whose sum is σ = 55642483764. Its totient is φ = 12364996384.
The previous prime is 30912490969. The next prime is 30912490997. The reversal of 30912490970 is 7909421903.
It can be written as a sum of positive squares in 2 ways, for example, as 30740959561 + 171531409 = 175331^2 + 13097^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 1545624539 + ... + 1545624558.
Almost surely, 230912490970 is an apocalyptic number.
30912490970 is a deficient number, since it is larger than the sum of its proper divisors (24729992794).
30912490970 is a wasteful number, since it uses less digits than its factorization.
30912490970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3091249104.
The product of its (nonzero) digits is 122472, while the sum is 44.
The spelling of 30912490970 in words is "thirty billion, nine hundred twelve million, four hundred ninety thousand, nine hundred seventy".
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