Base | Representation |
---|---|
bin | 1101110100101010… |
… | …00100010011101111 |
3 | 201011012000111202002 |
4 | 12322111010103233 |
5 | 110144242132033 |
6 | 3224214522515 |
7 | 351620621351 |
oct | 67225042357 |
9 | 21135014662 |
10 | 7421052143 |
11 | 3168a9934a |
12 | 153136643b |
13 | 91360881b |
14 | 5058410d1 |
15 | 2d678a3e8 |
hex | 1ba5444ef |
7421052143 has 16 divisors (see below), whose sum is σ = 8261865216. Its totient is φ = 6629800320.
The previous prime is 7421052113. The next prime is 7421052157. The reversal of 7421052143 is 3412501247.
It is a cyclic number.
It is not a de Polignac number, because 7421052143 - 214 = 7421035759 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 (7421052113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21221 + ... + 123662.
It is an arithmetic number, because the mean of its divisors is an integer number (516366576).
Almost surely, 27421052143 is an apocalyptic number.
7421052143 is a deficient number, since it is larger than the sum of its proper divisors (840813073).
7421052143 is a wasteful number, since it uses less digits than its factorization.
7421052143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145054.
The product of its (nonzero) digits is 6720, while the sum is 29.
The square root of 7421052143 is about 86145.5288625010. The cubic root of 7421052143 is about 1950.5413481002.
The spelling of 7421052143 in words is "seven billion, four hundred twenty-one million, fifty-two thousand, one hundred forty-three".
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