Base | Representation |
---|---|
bin | 1001001001111010100… |
… | …1010011000001110001 |
3 | 120000222010220121211221 |
4 | 2102132221103001301 |
5 | 10034102243324000 |
6 | 200130441505041 |
7 | 14235361516666 |
oct | 2223651230161 |
9 | 500863817757 |
10 | 157280448625 |
11 | 6077a792a43 |
12 | 26594aa2181 |
13 | 11aa69c9021 |
14 | 7880671a6d |
15 | 4157d4461a |
hex | 249ea53071 |
157280448625 has 32 divisors (see below), whose sum is σ = 206177167872. Its totient is φ = 119556360000.
The previous prime is 157280448617. The next prime is 157280448653. The reversal of 157280448625 is 526844082751.
It is not a de Polignac number, because 157280448625 - 23 = 157280448617 is a prime.
It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252979 + ... + 615271.
It is an arithmetic number, because the mean of its divisors is an integer number (6443036496).
Almost surely, 2157280448625 is an apocalyptic number.
It is an amenable number.
157280448625 is a deficient number, since it is larger than the sum of its proper divisors (48896719247).
157280448625 is a wasteful number, since it uses less digits than its factorization.
157280448625 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 362482 (or 362472 counting only the distinct ones).
The product of its (nonzero) digits is 4300800, while the sum is 52.
The spelling of 157280448625 in words is "one hundred fifty-seven billion, two hundred eighty million, four hundred forty-eight thousand, six hundred twenty-five".
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