Base | Representation |
---|---|
bin | 1101001100111000… |
… | …11110101101011001 |
3 | 200021221021210222001 |
4 | 12212130132231121 |
5 | 104003341412334 |
6 | 3131140401001 |
7 | 340430224234 |
oct | 64634365531 |
9 | 20257253861 |
10 | 7087450969 |
11 | 30077548a5 |
12 | 14596a6161 |
13 | 88c474891 |
14 | 4b340241b |
15 | 2b7340714 |
hex | 1a671eb59 |
7087450969 has 9 divisors (see below), whose sum is σ = 7342802623. Its totient is φ = 6840698872.
The previous prime is 7087450961. The next prime is 7087450991. The reversal of 7087450969 is 9690547807.
The square root of 7087450969 is 84187.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 3716487369 + 3370963600 = 60963^2 + 58060^2 .
It is not a de Polignac number, because 7087450969 - 23 = 7087450961 is a prime.
It is a super-2 number, since 2×70874509692 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7087450961) by changing a digit.
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 8 ways as a sum of consecutive naturals, for example, 2439972 + ... + 2442874.
Almost surely, 27087450969 is an apocalyptic number.
7087450969 is the 84187-th square number.
7087450969 is the 42094-th centered octagonal number.
It is an amenable number.
7087450969 is a deficient number, since it is larger than the sum of its proper divisors (255351654).
7087450969 is an frugal number, since it uses more digits than its factorization.
7087450969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5864 (or 2932 counting only the distinct ones).
The product of its (nonzero) digits is 3810240, while the sum is 55.
The cubic root of 7087450969 is about 1920.8643179771.
The spelling of 7087450969 in words is "seven billion, eighty-seven million, four hundred fifty thousand, nine hundred sixty-nine".
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