Base | Representation |
---|---|
bin | 101010011111110… |
… | …1110111110001000 |
3 | 10200101020222111002 |
4 | 1110333232332020 |
5 | 10410023243413 |
6 | 353255554132 |
7 | 50223513524 |
oct | 12477567610 |
9 | 3611228432 |
10 | 1425993608 |
11 | 671a33116 |
12 | 33968b948 |
13 | 199580000 |
14 | d755ad84 |
15 | 852cb958 |
hex | 54feef88 |
1425993608 has 60 divisors (see below), whose sum is σ = 2933670915. Its totient is φ = 649819872.
The previous prime is 1425993589. The next prime is 1425993617. The reversal of 1425993608 is 8063995241.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 3 ways, for example, as 24964 + 1425968644 = 158^2 + 37762^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=26702.
It is a Duffinian number.
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 14 ways as a sum of consecutive naturals, for example, 18050513 + ... + 18050591.
Almost surely, 21425993608 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1425993608
1425993608 is an abundant number, since it is smaller than the sum of its proper divisors (1507677307).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1425993608 is an frugal number, since it uses more digits than its factorization.
1425993608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 216 (or 94 counting only the distinct ones).
The product of its (nonzero) digits is 466560, while the sum is 47.
The square root of 1425993608 is about 37762.3305424864. The cubic root of 1425993608 is about 1125.5700440777.
The spelling of 1425993608 in words is "one billion, four hundred twenty-five million, nine hundred ninety-three thousand, six hundred eight".
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