Base | Representation |
---|---|
bin | 111010101110010… |
… | …1100111000010000 |
3 | 12002022202122101200 |
4 | 1311130230320100 |
5 | 13013414130003 |
6 | 523305431200 |
7 | 66554421612 |
oct | 16534547020 |
9 | 5068678350 |
10 | 1970458128 |
11 | 9212aa3a1 |
12 | 46ba9b500 |
13 | 255302a72 |
14 | 1499a8db2 |
15 | b7ec96a3 |
hex | 7572ce10 |
1970458128 has 60 divisors (see below), whose sum is σ = 5704714860. Its totient is φ = 634169088.
The previous prime is 1970458081. The next prime is 1970458153. The reversal of 1970458128 is 8218540791.
1970458128 is a `hidden beast` number, since 1 + 9 + 70 + 458 + 128 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 565107984 + 1405350144 = 23772^2 + 37488^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231751 + ... + 240102.
It is an arithmetic number, because the mean of its divisors is an integer number (95078581).
Almost surely, 21970458128 is an apocalyptic number.
1970458128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1970458128 is an abundant number, since it is smaller than the sum of its proper divisors (3734256732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1970458128 is a wasteful number, since it uses less digits than its factorization.
1970458128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 471896 (or 471887 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 45.
The square root of 1970458128 is about 44389.8426219332. The cubic root of 1970458128 is about 1253.6868489977.
The spelling of 1970458128 in words is "one billion, nine hundred seventy million, four hundred fifty-eight thousand, one hundred twenty-eight".
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