Base | Representation |
---|---|
bin | 1101010011101000… |
… | …10101100010000111 |
3 | 200102212202122200222 |
4 | 12221310111202013 |
5 | 104112333131422 |
6 | 3140521254555 |
7 | 342015210500 |
oct | 65164254207 |
9 | 20385678628 |
10 | 7144036487 |
11 | 3036693395 |
12 | 147463445b |
13 | 89b0c7633 |
14 | 4bab31ba7 |
15 | 2bc2bb842 |
hex | 1a9d15887 |
7144036487 has 12 divisors (see below), whose sum is σ = 8322009120. Its totient is φ = 6114913056.
The previous prime is 7144036481. The next prime is 7144036489. The reversal of 7144036487 is 7846304417.
It is not a de Polignac number, because 7144036487 - 28 = 7144036231 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7144036481) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66158 + ... + 136619.
It is an arithmetic number, because the mean of its divisors is an integer number (693500760).
Almost surely, 27144036487 is an apocalyptic number.
7144036487 is a deficient number, since it is larger than the sum of its proper divisors (1177972633).
7144036487 is a wasteful number, since it uses less digits than its factorization.
7144036487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 203510 (or 203503 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 44.
The square root of 7144036487 is about 84522.4022789225. The cubic root of 7144036487 is about 1925.9627712910.
The spelling of 7144036487 in words is "seven billion, one hundred forty-four million, thirty-six thousand, four hundred eighty-seven".
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