Base | Representation |
---|---|
bin | 100110101010100… |
… | …0010011010100001 |
3 | 10100102012202002120 |
4 | 1031111002122201 |
5 | 10124111014140 |
6 | 332422534453 |
7 | 44102245155 |
oct | 11525023241 |
9 | 3312182076 |
10 | 1297360545 |
11 | 6063651a8 |
12 | 302597429 |
13 | 178a22780 |
14 | c4435065 |
15 | 78d6d1d0 |
hex | 4d5426a1 |
1297360545 has 32 divisors (see below), whose sum is σ = 2251815552. Its totient is φ = 634025472.
The previous prime is 1297360529. The next prime is 1297360573. The reversal of 1297360545 is 5450637921.
It is not a de Polignac number, because 1297360545 - 24 = 1297360529 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 1297360497 and 1297360506.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2434 + ... + 50996.
It is an arithmetic number, because the mean of its divisors is an integer number (70369236).
Almost surely, 21297360545 is an apocalyptic number.
1297360545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1297360545 is a deficient number, since it is larger than the sum of its proper divisors (954455007).
1297360545 is a wasteful number, since it uses less digits than its factorization.
1297360545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48721.
The product of its (nonzero) digits is 226800, while the sum is 42.
The square root of 1297360545 is about 36018.8915015440. The cubic root of 1297360545 is about 1090.6537460862.
The spelling of 1297360545 in words is "one billion, two hundred ninety-seven million, three hundred sixty thousand, five hundred forty-five".
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